{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-96222", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "state": "PUBLISHED", "assignerShortName": "microsoft", "dateReserved": "2026-09-22T18:57:22.166Z", "datePublished": "2026-10-13T19:00:31.788Z", "dateUpdated": "2026-10-14T17:00:30.340Z" }, "containers": { "cna": { "title": "Active Directory Federation Services (AD FS) Spoofing Vulnerability", "datePublic": "2026-10-13T14:00:00.000Z", "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:system.security.cryptography.xml:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.0", "versionEndExcluding": "8.0.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*", "versionStartIncluding": "10.0.17763.0", "versionEndExcluding": "10.0.17763.9376" }, { "vulnerable": true, "criteria": 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1607", "Windows Server 2016", "Windows Server 2019" ], "versions": [ { "version": "3.0.0.0", "lessThan": "2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0", "versionType": "custom", "status": "affected" } ] }, { "vendor": "Microsoft", "product": "Microsoft .NET Framework 3.5 AND 4.7.2", "platforms": [ "Windows 10 version 1809" ], "versions": [ { "version": "4.7.0", "lessThan": "2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0", "versionType": "custom", "status": "affected" } ] }, { "vendor": "Microsoft", "product": "Microsoft .NET Framework 3.5 AND 4.8", "platforms": [ "Windows 10 version 1809", "Windows 10 version 21H2", "Windows 10 version 22H2", "Windows Server 2019", "Windows Server 2022" ], "versions": [ { "version": "4.8.0", "lessThan": "2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0", "versionType": "custom", "status": "affected" } ] }, { "vendor": "Microsoft", "product": "Microsoft .NET Framework 3.5 AND 4.8.1", "platforms": [ "Windows 10 version 21H2", "Windows 10 version 22H2", "Windows 11 version 23H2", "Windows 11 version 24H2", "Windows 11 version 25H2", "Windows 11 version 26H2", "Windows Server 2022", "Windows Server 2025" ], "versions": [ { "version": "4.8.1", "lessThan": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0", "versionType": "custom", "status": "affected" } ] }, { "vendor": "Microsoft", "product": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2", "platforms": [ "Windows Server 2012", "Windows Server 2012 R2" ], "versions": [ { "version": "4.7.0", "lessThan": "4.7.4150.0", "versionType": "custom", "status": "affected" } ] }, { "vendor": "Microsoft", "product": "Microsoft .NET Framework 4.8", "platforms": [ "Windows 10 version 1607", "Windows Server 2012", "Windows Server 2012 R2", "Windows Server 2016" ], "versions": [ { "version": "4.8.0", "lessThan": "4.8.4811.0", "versionType": "custom", "status": "affected" } ] }, { "vendor": "Microsoft", "product": "Microsoft .NET Framework 4.8.1", "platforms": [ "Windows 11 version 26H1" ], 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"versionType": "custom", "status": "affected" } ] }, { "vendor": "Microsoft", "product": "Windows 10 Version 1809", "platforms": [ "32-bit Systems", "x64-based Systems" ], "versions": [ { "version": "10.0.17763.0", "lessThan": "10.0.17763.9376", "versionType": "custom", "status": "affected" } ] }, { "vendor": "Microsoft", "product": "Windows Server 2012 R2", "platforms": [ "x64-based Systems" ], "versions": [ { "version": "6.3.9600.0", "lessThan": "6.3.9600.23470", "versionType": "custom", "status": "affected" } ] }, { "vendor": "Microsoft", "product": "Windows Server 2012 R2 (Server Core installation)", "platforms": [ "x64-based Systems" ], "versions": [ { "version": "6.3.9600.0", "lessThan": "6.3.9600.23470", "versionType": "custom", "status": "affected" } ] }, { "vendor": "Microsoft", "product": "Windows Server 2016", "platforms": [ "x64-based Systems" ], "versions": [ { "version": "10.0.14393.0", "lessThan": "10.0.14393.9612", "versionType": "custom", "status": "affected" } ] }, { 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2025", "platforms": [ "x64-based Systems" ], "versions": [ { "version": "10.0.26100.0", "lessThan": "10.0.26100.33650", "versionType": "custom", "status": "affected" } ] }, { "vendor": "Microsoft", "product": "Windows Server 2025 (Server Core installation)", "platforms": [ "x64-based Systems" ], "versions": [ { "version": "10.0.26100.0", "lessThan": "10.0.26100.33650", "versionType": "custom", "status": "affected" } ] } ], "descriptions": [ { "value": "Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.", "lang": "en-US" } ], "problemTypes": [ { "descriptions": [ { "description": "CWE-295: Improper Certificate Validation", "lang": "en-US", "type": "CWE", "cweId": "CWE-295" } ] } ], "providerMetadata": { "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2026-10-14T17:00:30.340Z" }, "references": [ { "name": "Active Directory Federation Services (AD FS) Spoofing Vulnerability", "tags": [ "vendor-advisory", "patch" ], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96222" } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en-US", "value": "GENERAL" } ], "cvssV3_1": { "version": "3.1", "baseSeverity": "HIGH", "baseScore": 7.4, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C" } } ] }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-08T00:00:00+00:00", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-96222" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-14T03:57:11.525Z" } } ] } }