{
  "document": {
    "category": "csaf_vex",
    "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"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2026-7598 libssh2 userauth.c userauth_password integer overflow - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-7598.json"
      },
      {
        "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": "libssh2 userauth.c userauth_password integer overflow",
    "tracking": {
      "current_release_date": "2026-05-19T01:44:45.000Z",
      "generator": {
        "date": "2026-05-19T07:12:12.399Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2026-7598",
      "initial_release_date": "2026-05-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-05-03T01:01:24.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2026-05-04T14:41:20.000Z",
          "legacy_version": "2",
          "number": "2",
          "summary": "Information published."
        },
        {
          "date": "2026-05-05T01:03:22.000Z",
          "legacy_version": "3",
          "number": "3",
          "summary": "Information published."
        },
        {
          "date": "2026-05-06T01:42:35.000Z",
          "legacy_version": "4",
          "number": "4",
          "summary": "Information published."
        },
        {
          "date": "2026-05-06T14:48:35.000Z",
          "legacy_version": "5",
          "number": "5",
          "summary": "Information published."
        },
        {
          "date": "2026-05-19T01:44:45.000Z",
          "legacy_version": "6",
          "number": "6",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "6"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "2.0",
                "product": {
                  "name": "CBL Mariner 2.0",
                  "product_id": "17086"
                }
              },
              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "17084"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "cbl2 nmap 0:7.93-4.cbl2",
                "product": {
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                  "product_id": "2"
                }
              }
            ],
            "category": "product_name",
            "name": "nmap"
          },
          {
            "branches": [
              {
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                "name": "<azl3 libssh2 0:1.11.1-1.azl3",
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              },
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                "category": "product_version_range",
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                "product": {
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                }
              }
            ],
            "category": "product_name",
            "name": "libssh2"
          },
          {
            "category": "product_name",
            "name": "azl3 nmap 0:7.95-3.azl3",
            "product": {
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              "product_id": "3"
            }
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
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        "full_product_name": {
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      {
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        },
        "product_reference": "1",
        "relates_to_product_reference": "17084"
      },
      {
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        "full_product_name": {
          "name": "azl3 libssh2 0:1.11.1-2.azl3 as a component of Azure Linux 3.0",
          "product_id": "21318-17084"
        },
        "product_reference": "21318",
        "relates_to_product_reference": "17084"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-7598",
      "cwe": {
        "id": "CWE-190",
        "name": "Integer Overflow or Wraparound"
      },
      "notes": [
        {
          "category": "general",
          "text": "VulDB",
          "title": "Assigning CNA"
        }
      ],
      "flags": [
        {
          "label": "component_not_present",
          "product_ids": [
            "17084-3"
          ]
        }
      ],
      "product_status": {
        "fixed": [
          "18213-17084",
          "21318-17084"
        ],
        "known_affected": [
          "17086-2",
          "17084-4",
          "17084-1"
        ],
        "known_not_affected": [
          "17084-3"
        ],
        "under_investigation": [
          "17086-5"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-7598 libssh2 userauth.c userauth_password integer overflow - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-7598.json"
        }
      ],
      "remediations": [
        {
          "category": "none_available",
          "date": "2026-05-03T01:01:24.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17086-2"
          ]
        },
        {
          "category": "vendor_fix",
          "date": "2026-05-03T01:01:24.000Z",
          "details": "0:1.11.1-2.azl3:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17084-4",
            "17084-1"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "NOT_DEFINED",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 7.0,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "17086-2",
            "17084-4",
            "17084-1"
          ]
        }
      ],
      "title": "libssh2 userauth.c userauth_password integer overflow"
    }
  ]
}