{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "<a href=\"https://www.linkedin.com/in/john-nzyuko-412b563b1/\">John Nzyuko</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-2026-69375 Microsoft Exchange Server Tampering Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69375"
      },
      {
        "category": "self",
        "summary": "CVE-2026-69375 Microsoft Exchange Server Tampering Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-69375.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": "Microsoft Exchange Server Tampering Vulnerability",
    "tracking": {
      "current_release_date": "2026-09-08T07:00:00.000Z",
      "generator": {
        "date": "2026-10-14T23:05:23.403Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2026-69375",
      "initial_release_date": "2026-09-08T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-09-08T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<15.02.2562.049",
                "product": {
                  "name": "Microsoft Exchange Server Subscription Edition RTM <15.02.2562.049",
                  "product_id": "1"
                }
              },
              {
                "category": "product_version",
                "name": "15.02.2562.049",
                "product": {
                  "name": "Microsoft Exchange Server Subscription Edition RTM 15.02.2562.049",
                  "product_id": "16792"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Exchange Server Subscription Edition RTM"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<15.02.1748.051",
                "product": {
                  "name": "Microsoft Exchange Server 2019 Cumulative Update 15 <15.02.1748.051",
                  "product_id": "2"
                }
              },
              {
                "category": "product_version",
                "name": "15.02.1748.051",
                "product": {
                  "name": "Microsoft Exchange Server 2019 Cumulative Update 15 15.02.1748.051",
                  "product_id": "12502"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Exchange Server 2019 Cumulative Update 15"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<15.01.2507.073",
                "product": {
                  "name": "Microsoft Exchange Server 2016 Cumulative Update 23 <15.01.2507.073",
                  "product_id": "4"
                }
              },
              {
                "category": "product_version",
                "name": "15.01.2507.073",
                "product": {
                  "name": "Microsoft Exchange Server 2016 Cumulative Update 23 15.01.2507.073",
                  "product_id": "12039"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Exchange Server 2016 Cumulative Update 23"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<15.02.1544.046",
                "product": {
                  "name": "Microsoft Exchange Server 2019 Cumulative Update 14 <15.02.1544.046",
                  "product_id": "3"
                }
              },
              {
                "category": "product_version",
                "name": "15.02.1544.046",
                "product": {
                  "name": "Microsoft Exchange Server 2019 Cumulative Update 14 15.02.1544.046",
                  "product_id": "12293"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Exchange Server 2019 Cumulative Update 14"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-69375",
      "cwe": {
        "id": "CWE-639",
        "name": "Authorization Bypass Through User-Controlled Key"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "An authenticated attacker could replace valid file content with specially crafted file content.",
          "title": "According to the CVSS metrics, successful exploitation of this vulnerability could lead to major loss of integrity (I:H). What does that mean for this vulnerability?"
        },
        {
          "category": "faq",
          "text": "Any authenticated attacker could trigger this vulnerability. It does not require admin or other elevated privileges.",
          "title": "According to the CVSS metric, privileges required is low (PR:L).  What does that mean for this vulnerability?"
        }
      ],
      "product_status": {
        "fixed": [
          "12039",
          "12293",
          "12502",
          "16792"
        ],
        "known_affected": [
          "1",
          "2",
          "3",
          "4"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-69375 Microsoft Exchange Server Tampering Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69375"
        },
        {
          "category": "self",
          "summary": "CVE-2026-69375 Microsoft Exchange Server Tampering Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-69375.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-09-08T07:00:00.000Z",
          "details": "15.02.2562.049:Security Update:https://support.microsoft.com/help/5121608",
          "product_ids": [
            "1"
          ],
          "url": "https://support.microsoft.com/help/5121608"
        },
        {
          "category": "vendor_fix",
          "date": "2026-09-08T07:00:00.000Z",
          "details": "15.02.1748.051:Security Update:https://support.microsoft.com/help/5121609",
          "product_ids": [
            "2"
          ],
          "url": "https://support.microsoft.com/help/5121609"
        },
        {
          "category": "vendor_fix",
          "date": "2026-09-08T07:00:00.000Z",
          "details": "15.01.2507.073:Security Update:https://support.microsoft.com/help/5121611",
          "product_ids": [
            "4"
          ],
          "url": "https://support.microsoft.com/help/5121611"
        },
        {
          "category": "vendor_fix",
          "date": "2026-09-08T07:00:00.000Z",
          "details": "15.02.1544.046:Security Update:https://support.microsoft.com/help/5121610",
          "product_ids": [
            "3"
          ],
          "url": "https://support.microsoft.com/help/5121610"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 5.7,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Tampering"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Microsoft Exchange Server Tampering Vulnerability"
    }
  ]
}