CVE-2026-65810

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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "secure@microsoft.com", "affectedData": [{"vendor": "Microsoft", "product": "Microsoft .NET Framework 3.5", "versions": [{"status": "affected", "version": "3.5.0", "lessThan": "2.0.50727.9183 & 3.0.30729.9169", "versionType": "custom"}], "platforms": ["Windows 11 Version 26H1 for ARM64-based Systems", "Windows 11 version 26H1 for x64-based Systems", "Windows Server 2012", "Windows Server 2012 (Server Core installation)", "Windows Server 2012 R2", "Windows Server 2012 R2 (Server Core installation)"]}, {"vendor": "Microsoft", "product": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2", "versions": [{"status": "affected", "version": "3.0.0.0", "lessThan": "2.0.50727.8984 & 3.0.30729.8980 & 4.7.4144.0", "versionType": "custom"}], "platforms": ["Windows 10 Version 1607 for 32-bit Systems", "Windows 10 Version 1607 for x64-based Systems", "Windows Server 2016", "Windows Server 2016 (Server Core installation)"]}, {"vendor": "Microsoft", "product": "Microsoft .NET Framework 3.5 AND 4.7.2", "versions": [{"status": "affected", "version": "4.7.0", "lessThan": "2.0.50727.9070 & 3.0.30729.9068 & 4.7.4144.0", "versionType": "custom"}], "platforms": ["Windows 10 Version 1809 for 32-bit Systems", "Windows 10 Version 1809 for ARM64-based Systems", "Windows 10 Version 1809 for x64-based Systems", "Windows Server 2019", "Windows Server 2019 (Server Core installation)"]}, {"vendor": "Microsoft", "product": "Microsoft .NET Framework 3.5 AND 4.8", "versions": [{"status": "affected", "version": "4.8.0", "lessThan": "2.0.50727.9070 & 3.0.30729.9068 & 4.8.4805.0", "versionType": "custom"}], "platforms": ["Windows 10 Version 1809 for 32-bit Systems", "Windows 10 Version 1809 for ARM64-based Systems", "Windows 10 Version 1809 for x64-based Systems", "Windows 10 Version 21H2 for 32-bit Systems", "Windows 10 Version 21H2 for ARM64-based Systems", "Windows 10 Version 21H2 for x64-based Systems", "Windows 10 Version 22H2 for 32-bit Systems", "Windows 10 Version 22H2 for ARM64-based Systems", "Windows 10 Version 22H2 for x64-based Systems", "Windows Server 2019", "Windows Server 2019 (Server Core installation)", "Windows Server 2022", "Windows Server 2022 (Server Core installation)"]}, {"vendor": "Microsoft", "product": "Microsoft .NET Framework 3.5 AND 4.8.1", "versions": [{"status": "affected", "version": "4.8.1", "lessThan": "2.0.50727.9183 & 3.0.30729.9169 & 4.8.9343.0", "versionType": "custom"}], "platforms": ["Windows 10 Version 21H2 for 32-bit Systems", "Windows 10 Version 21H2 for ARM64-based Systems", "Windows 10 Version 21H2 for x64-based Systems", "Windows 10 Version 22H2 for 32-bit Systems", "Windows 10 Version 22H2 for ARM64-based Systems", "Windows 10 Version 22H2 for x64-based Systems", "Windows 11 Version 23H2 for ARM64-based Systems", "Windows 11 Version 23H2 for x64-based Systems", "Windows 11 Version 24H2 for ARM64-based Systems", "Windows 11 Version 24H2 for x64-based Systems", "Windows 11 Version 25H2 for ARM64-based Systems", "Windows 11 Version 25H2 for x64-based Systems", "Windows Server 2022", "Windows Server 2022 (Server Core installation)", "Windows Server 2025", "Windows Server 2025 (Server Core installation)"]}, {"vendor": "Microsoft", "product": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2", "versions": [{"status": "affected", "version": "4.7.0", "lessThan": "4.7.4144.0", "versionType": "custom"}], "platforms": ["Windows Server 2012", "Windows Server 2012 (Server Core installation)", "Windows Server 2012 R2", "Windows Server 2012 R2 (Server Core installation)"]}, {"vendor": "Microsoft", "product": "Microsoft .NET Framework 4.8", "versions": [{"status": "affected", "version": "4.8.0", "lessThan": "4.8.4805.0", "versionType": "custom"}], "platforms": ["Windows 10 Version 1607 for 32-bit Systems", "Windows 10 Version 1607 for x64-based Systems", "Windows Server 2012", "Windows Server 2012 (Server Core installation)", "Windows Server 2012 R2", "Windows Server 2012 R2 (Server Core installation)", "Windows Server 2016", "Windows Server 2016 (Server Core installation)"]}, {"vendor": "Microsoft", "product": "Microsoft .NET Framework 4.8.1", "versions": [{"status": "affected", "version": "4.8.0.0", "lessThan": "4.8.9344.0", "versionType": "custom"}], "platforms": ["Windows 11 Version 26H1 for ARM64-based Systems", "Windows 11 version 26H1 for x64-based Systems"]}]}], "published": "2026-08-11T17:19:00.570", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65810", "tags": ["Patch", "Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "secure@microsoft.com", "description": [{"lang": "en", "value": "CWE-23"}]}], "descriptions": [{"lang": "en", "value": "Relative path traversal in .NET Framework allows an unauthorized attacker to elevate privileges locally."}], "lastModified": "2026-08-14T13:30:44.347", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:.net_framework:3.5:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "23317443-1968-4791-9F20-AD3B308A83D1"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_11_26h1:-:*:*:*:*:*:arm64:*", "vulnerable": false, "matchCriteriaId": "CBFE0371-0C4D-406A-9EC7-456104271C3E"}, {"criteria": "cpe:2.3:o:microsoft:windows_11_26h1:-:*:*:*:*:*:x64:*", "vulnerable": false, "matchCriteriaId": "F2B83840-FCE8-445A-AE55-ACEDA6534FA1"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074"}, {"criteria": 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