{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "<a href=\"https://www.linkedin.com/in/leandrosbatista21/\">Leandro Batista</a>"
        ]
      }
    ],
    "aggregate_severity": {
      "namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      },
      {
        "category": "general",
        "text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
        "title": "Customer Action"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2026-58280 .NET Denial of Service Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58280"
      },
      {
        "category": "self",
        "summary": "CVE-2026-58280 .NET Denial of Service Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-58280.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Exploitability Index",
        "url": "https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": ".NET Denial of Service Vulnerability",
    "tracking": {
      "current_release_date": "2026-10-15T07:00:00.000Z",
      "generator": {
        "date": "2026-11-03T01:25:22.003Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2026-58280",
      "initial_release_date": "2026-10-13T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-10-13T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2026-10-15T07:00:00.000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Updated the Security Updates table to add KB article links for .NET 11.0. This is an informational change only; the fixed builds are unchanged."
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<9.0.21",
                "product": {
                  "name": ".NET 9.0 runtime installed on Windows <9.0.21",
                  "product_id": "9"
                }
              },
              {
                "category": "product_version",
                "name": "9.0.21",
                "product": {
                  "name": ".NET 9.0 runtime installed on Windows 9.0.21",
                  "product_id": "12434"
                }
              }
            ],
            "category": "product_name",
            "name": ".NET 9.0 runtime installed on Windows"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<9.0.21",
                "product": {
                  "name": ".NET 9.0 runtime installed on Linux <9.0.21",
                  "product_id": "11"
                }
              },
              {
                "category": "product_version",
                "name": "9.0.21",
                "product": {
                  "name": ".NET 9.0 runtime installed on Linux 9.0.21",
                  "product_id": "12432"
                }
              }
            ],
            "category": "product_name",
            "name": ".NET 9.0 runtime installed on Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<9.0.21",
                "product": {
                  "name": ".NET 9.0 runtime installed on Mac OS <9.0.21",
                  "product_id": "10"
                }
              },
              {
                "category": "product_version",
                "name": "9.0.21",
                "product": {
                  "name": ".NET 9.0 runtime installed on Mac OS 9.0.21",
                  "product_id": "12433"
                }
              }
            ],
            "category": "product_name",
            "name": ".NET 9.0 runtime installed on Mac OS"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<8.0.32",
                "product": {
                  "name": ".NET 8.0 runtime installed on Windows <8.0.32",
                  "product_id": "14"
                }
              },
              {
                "category": "product_version",
                "name": "8.0.32",
                "product": {
                  "name": ".NET 8.0 runtime installed on Windows 8.0.32",
                  "product_id": "12414"
                }
              }
            ],
            "category": "product_name",
            "name": ".NET 8.0 runtime installed on Windows"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<8.0.32",
                "product": {
                  "name": ".NET 8.0 runtime installed on Linux <8.0.32",
                  "product_id": "13"
                }
              },
              {
                "category": "product_version",
                "name": "8.0.32",
                "product": {
                  "name": ".NET 8.0 runtime installed on Linux 8.0.32",
                  "product_id": "12415"
                }
              }
            ],
            "category": "product_name",
            "name": ".NET 8.0 runtime installed on Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<8.0.32",
                "product": {
                  "name": ".NET 8.0 runtime installed on Mac OS <8.0.32",
                  "product_id": "12"
                }
              },
              {
                "category": "product_version",
                "name": "8.0.32",
                "product": {
                  "name": ".NET 8.0 runtime installed on Mac OS 8.0.32",
                  "product_id": "12416"
                }
              }
            ],
            "category": "product_name",
            "name": ".NET 8.0 runtime installed on Mac OS"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<10.0.13",
                "product": {
                  "name": ".NET 10.0 runtime installed on Windows <10.0.13",
                  "product_id": "7"
                }
              },
              {
                "category": "product_version",
                "name": "10.0.13",
                "product": {
                  "name": ".NET 10.0 runtime installed on Windows 10.0.13",
                  "product_id": "20837"
                }
              }
            ],
            "category": "product_name",
            "name": ".NET 10.0 runtime installed on Windows"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<10.0.13",
                "product": {
                  "name": ".NET 10.0 runtime installed on Linux <10.0.13",
                  "product_id": "5"
                }
              },
              {
                "category": "product_version",
                "name": "10.0.13",
                "product": {
                  "name": ".NET 10.0 runtime installed on Linux 10.0.13",
                  "product_id": "20839"
                }
              }
            ],
            "category": "product_name",
            "name": ".NET 10.0 runtime installed on Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<10.0.13",
                "product": {
                  "name": ".NET 10.0 runtime installed on Mac OS <10.0.13",
                  "product_id": "6"
                }
              },
              {
                "category": "product_version",
                "name": "10.0.13",
                "product": {
                  "name": ".NET 10.0 runtime installed on Mac OS 10.0.13",
                  "product_id": "20838"
                }
              }
            ],
            "category": "product_name",
            "name": ".NET 10.0 runtime installed on Mac OS"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<11.0.0-rc.2",
                "product": {
                  "name": ".NET 11.0 runtime installed on Windows <11.0.0-rc.2",
                  "product_id": "4"
                }
              },
              {
                "category": "product_version",
                "name": "11.0.0-rc.2",
                "product": {
                  "name": ".NET 11.0 runtime installed on Windows 11.0.0-rc.2",
                  "product_id": "21783"
                }
              }
            ],
            "category": "product_name",
            "name": ".NET 11.0 runtime installed on Windows"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<11.0.0-rc.2",
                "product": {
                  "name": ".NET 11.0 runtime installed on Linux <11.0.0-rc.2",
                  "product_id": "2"
                }
              },
              {
                "category": "product_version",
                "name": "11.0.0-rc.2",
                "product": {
                  "name": ".NET 11.0 runtime installed on Linux 11.0.0-rc.2",
                  "product_id": "21785"
                }
              }
            ],
            "category": "product_name",
            "name": ".NET 11.0 runtime installed on Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<11.0.0-rc.2",
                "product": {
                  "name": ".NET 11.0 runtime installed on Mac OS <11.0.0-rc.2",
                  "product_id": "3"
                }
              },
              {
                "category": "product_version",
                "name": "11.0.0-rc.2",
                "product": {
                  "name": ".NET 11.0 runtime installed on Mac OS 11.0.0-rc.2",
                  "product_id": "21784"
                }
              }
            ],
            "category": "product_name",
            "name": ".NET 11.0 runtime installed on Mac OS"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 <2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "15"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "12079-21983"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.8.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 <2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "16"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "12079-21984"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.8.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 <2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "17"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "12079-21985"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.8.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 <2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "18"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "12079-21986"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.8.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 <2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "19"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "12079-12436"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.8.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 4.8.1 <4.8.9363.0",
                  "product_id": "23"
                }
              },
              {
                "category": "product_version",
                "name": "4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 4.8.1 4.8.9363.0",
                  "product_id": "12078-21987"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 4.8.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 <2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "20"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "12079-21988"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.8.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 <2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "21"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "12079-11923"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.8.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 <2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "22"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8.1 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
                  "product_id": "12079-21989"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.8.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<18.10.4",
                "product": {
                  "name": "Microsoft Visual Studio 2026 version 18.10 <18.10.4",
                  "product_id": "1"
                }
              },
              {
                "category": "product_version",
                "name": "18.10.4",
                "product": {
                  "name": "Microsoft Visual Studio 2026 version 18.10 18.10.4",
                  "product_id": "21956"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Visual Studio 2026 version 18.10"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<17.14.42",
                "product": {
                  "name": "Microsoft Visual Studio 2022 version 17.14 <17.14.42",
                  "product_id": "8"
                }
              },
              {
                "category": "product_version",
                "name": "17.14.42",
                "product": {
                  "name": "Microsoft Visual Studio 2022 version 17.14 17.14.42",
                  "product_id": "16767"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Visual Studio 2022 version 17.14"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 <2.0.50727.9188 AND 3.0.30729.9171",
                  "product_id": "39"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 2.0.50727.9188 AND 3.0.30729.9171",
                  "product_id": "2472-21987"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 <2.0.50727.9188 AND 3.0.30729.9171",
                  "product_id": "40"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 2.0.50727.9188 AND 3.0.30729.9171",
                  "product_id": "2472-10378"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 <2.0.50727.9188 AND 3.0.30729.9171",
                  "product_id": "41"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 2.0.50727.9188 AND 3.0.30729.9171",
                  "product_id": "2472-10483"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 <2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                  "product_id": "26"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                  "product_id": "11723-22028"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 <2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                  "product_id": "27"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                  "product_id": "11723-10816"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 <2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                  "product_id": "28"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                  "product_id": "11723-11571"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.7.2 <2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                  "product_id": "29"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.7.2 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
                  "product_id": "11677-22029"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.7.2"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8 <2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                  "product_id": "30"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                  "product_id": "11676-22029"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.8"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8 <2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                  "product_id": "31"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                  "product_id": "11676-21983"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.8"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8 <2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                  "product_id": "32"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                  "product_id": "11676-21984"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.8"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8 <2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                  "product_id": "33"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                  "product_id": "11676-11571"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.8"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8 <2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                  "product_id": "34"
                }
              },
              {
                "category": "product_version",
                "name": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 3.5 AND 4.8 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0",
                  "product_id": "11676-11923"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 3.5 AND 4.8"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<4.7.4150.0",
                "product": {
                  "name": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 <4.7.4150.0",
                  "product_id": "24"
                }
              },
              {
                "category": "product_version",
                "name": "4.7.4150.0",
                "product": {
                  "name": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.4150.0",
                  "product_id": "11863-10378"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<4.7.4150.0",
                "product": {
                  "name": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 <4.7.4150.0",
                  "product_id": "25"
                }
              },
              {
                "category": "product_version",
                "name": "4.7.4150.0",
                "product": {
                  "name": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.4150.0",
                  "product_id": "11863-10483"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 4.8 <4.8.4811.0",
                  "product_id": "35"
                }
              },
              {
                "category": "product_version",
                "name": "4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 4.8 4.8.4811.0",
                  "product_id": "11650-22028"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 4.8"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 4.8 <4.8.4811.0",
                  "product_id": "36"
                }
              },
              {
                "category": "product_version",
                "name": "4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 4.8 4.8.4811.0",
                  "product_id": "11650-10378"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 4.8"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 4.8 <4.8.4811.0",
                  "product_id": "37"
                }
              },
              {
                "category": "product_version",
                "name": "4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 4.8 4.8.4811.0",
                  "product_id": "11650-10483"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 4.8"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 4.8 <4.8.4811.0",
                  "product_id": "38"
                }
              },
              {
                "category": "product_version",
                "name": "4.8.4811.0",
                "product": {
                  "name": "Microsoft .NET Framework 4.8 4.8.4811.0",
                  "product_id": "11650-10816"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft .NET Framework 4.8"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-58280",
      "cwe": {
        "id": "CWE-674",
        "name": "Uncontrolled Recursion"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "fixed": [
          "11650-10378",
          "11650-10483",
          "11650-10816",
          "11650-22028",
          "11676-11571",
          "11676-11923",
          "11676-21983",
          "11676-21984",
          "11676-22029",
          "11677-22029",
          "11723-10816",
          "11723-11571",
          "11723-22028",
          "11863-10378",
          "11863-10483",
          "12078-21987",
          "12079-11923",
          "12079-12436",
          "12079-21983",
          "12079-21984",
          "12079-21985",
          "12079-21986",
          "12079-21988",
          "12079-21989",
          "12414",
          "12415",
          "12416",
          "12432",
          "12433",
          "12434",
          "16767",
          "20837",
          "20838",
          "20839",
          "21783",
          "21784",
          "21785",
          "21956",
          "2472-10378",
          "2472-10483",
          "2472-21987"
        ],
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9",
          "10",
          "11",
          "12",
          "13",
          "14",
          "15",
          "16",
          "17",
          "18",
          "19",
          "20",
          "21",
          "22",
          "23",
          "24",
          "25",
          "26",
          "27",
          "28",
          "29",
          "30",
          "31",
          "32",
          "33",
          "34",
          "35",
          "36",
          "37",
          "38",
          "39",
          "40",
          "41"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-58280 .NET Denial of Service Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58280"
        },
        {
          "category": "self",
          "summary": "CVE-2026-58280 .NET Denial of Service Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-58280.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "9.0.21:Security Update:https://support.microsoft.com/help/5130035",
          "product_ids": [
            "9",
            "11",
            "10"
          ],
          "url": "https://support.microsoft.com/help/5130035"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "8.0.32:Security Update:https://support.microsoft.com/help/5130034",
          "product_ids": [
            "14",
            "13",
            "12"
          ],
          "url": "https://support.microsoft.com/help/5130034"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "10.0.13:Security Update:https://support.microsoft.com/help/5130036",
          "product_ids": [
            "7",
            "5",
            "6"
          ],
          "url": "https://support.microsoft.com/help/5130036"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "11.0.0-rc.2:Security Update:https://github.com/dotnet/announcements/issues/447",
          "product_ids": [
            "4",
            "2",
            "3"
          ],
          "url": "https://github.com/dotnet/announcements/issues/447"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0:Security Update:https://support.microsoft.com/help/5127689",
          "product_ids": [
            "15",
            "16"
          ],
          "url": "https://support.microsoft.com/help/5127689"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0:Security Update:https://support.microsoft.com/help/5127690",
          "product_ids": [
            "17",
            "18",
            "19"
          ],
          "url": "https://support.microsoft.com/help/5127690"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "4.8.9363.0:Security Update:https://support.microsoft.com/help/5127691",
          "product_ids": [
            "23"
          ],
          "url": "https://support.microsoft.com/help/5127691"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0:Security Update:https://support.microsoft.com/help/5127692",
          "product_ids": [
            "20"
          ],
          "url": "https://support.microsoft.com/help/5127692"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0:Security Update:https://support.microsoft.com/help/5127693",
          "product_ids": [
            "21"
          ],
          "url": "https://support.microsoft.com/help/5127693"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.10008.0:Security Update:https://support.microsoft.com/help/5127694",
          "product_ids": [
            "22"
          ],
          "url": "https://support.microsoft.com/help/5127694"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "18.10.4:Security Update:https://learn.microsoft.com/en-us/visualstudio/releases/2026/release-notes",
          "product_ids": [
            "1"
          ],
          "url": "https://learn.microsoft.com/en-us/visualstudio/releases/2026/release-notes"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "17.14.42:Security Update:https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes",
          "product_ids": [
            "8"
          ],
          "url": "https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "2.0.50727.9188 AND 3.0.30729.9171:Security Update:https://support.microsoft.com/help/5127696",
          "product_ids": [
            "39"
          ],
          "url": "https://support.microsoft.com/help/5127696"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "2.0.50727.8987 AND 3.0.30729.8982:Security Update:https://support.microsoft.com/help/5127660",
          "product_ids": [
            "40"
          ],
          "url": "https://support.microsoft.com/help/5127660"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "2.0.50727.8987 AND 3.0.30729.8982:Security Update:https://support.microsoft.com/help/5127664",
          "product_ids": [
            "41"
          ],
          "url": "https://support.microsoft.com/help/5127664"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0:Security Update:https://support.microsoft.com/help/5126868",
          "product_ids": [
            "26",
            "27"
          ],
          "url": "https://support.microsoft.com/help/5126868"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0:Security Update:https://support.microsoft.com/help/5127666",
          "product_ids": [
            "28",
            "29"
          ],
          "url": "https://support.microsoft.com/help/5127666"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0:Security Update:https://support.microsoft.com/help/5127685",
          "product_ids": [
            "30",
            "33"
          ],
          "url": "https://support.microsoft.com/help/5127685"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0:Security Update:https://support.microsoft.com/help/5127683",
          "product_ids": [
            "31",
            "32"
          ],
          "url": "https://support.microsoft.com/help/5127683"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.4811.0:Security Update:https://support.microsoft.com/help/5127687",
          "product_ids": [
            "34"
          ],
          "url": "https://support.microsoft.com/help/5127687"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "4.7.4150.0:Security Update:https://support.microsoft.com/help/5127667",
          "product_ids": [
            "24"
          ],
          "url": "https://support.microsoft.com/help/5127667"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "4.7.4150.0:Security Update:https://support.microsoft.com/help/5127668",
          "product_ids": [
            "25"
          ],
          "url": "https://support.microsoft.com/help/5127668"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "4.8.4811.0:Security Update:https://support.microsoft.com/help/5127684",
          "product_ids": [
            "35",
            "38"
          ],
          "url": "https://support.microsoft.com/help/5127684"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "4.8.4811.0:Security Update:https://support.microsoft.com/help/5127686",
          "product_ids": [
            "36"
          ],
          "url": "https://support.microsoft.com/help/5127686"
        },
        {
          "category": "vendor_fix",
          "date": "2026-10-13T07:00:00.000Z",
          "details": "4.8.4811.0:Security Update:https://support.microsoft.com/help/5127688",
          "product_ids": [
            "37"
          ],
          "url": "https://support.microsoft.com/help/5127688"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 6.5,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15",
            "16",
            "17",
            "18",
            "19",
            "20",
            "21",
            "22",
            "23",
            "24",
            "25",
            "26",
            "27",
            "28",
            "29",
            "30",
            "31",
            "32",
            "33",
            "34",
            "35",
            "36",
            "37",
            "38",
            "39",
            "40",
            "41"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Denial of Service"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": ".NET Denial of Service Vulnerability"
    }
  ]
}