CVE-2026-58600

{"id": "CVE-2026-58600", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-58600", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-09-09T18:19:55.766185Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secure@microsoft.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "secure@microsoft.com", "affectedData": [{"vendor": "Microsoft", "product": "HEVC Video Extensions", "versions": [{"status": "affected", "version": "1.0.0", "lessThan": "2.4.87.0", "versionType": "custom"}]}, {"vendor": "Microsoft", "product": "HEVC Video Extensions for Licensed Applications", "versions": [{"status": "affected", "version": "2.0.0.0", "lessThan": "2.4.85.0", "versionType": "custom"}]}, {"vendor": "Microsoft", "product": "HEVC Video Extensions from Device Manufacturer", "versions": [{"status": "affected", "version": "2.0.0.0", "lessThan": "2.4.86.0", "versionType": "custom"}], "platforms": ["Windows 10 Version 1809 for 32-bit 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 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 11 Version 26H1 for ARM64-based Systems", "Windows 11 version 26H1 for x64-based Systems", "Windows Server 2019", "Windows Server 2019 (Server Core installation)", "Windows Server 2022", "Windows Server 2022 (Server Core installation)", "Windows Server 2025", "Windows Server 2025 (Server Core installation)"]}]}], "published": "2026-09-08T18:17:43.923", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58600", "tags": ["Patch", "Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "secure@microsoft.com", "description": [{"lang": "en", "value": "CWE-122"}]}], "descriptions": [{"lang": "en", "value": "Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to elevate privileges locally."}], "lastModified": "2026-10-01T16:33:41.593", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:hevc_video_extensions:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "252C3631-BC20-4A54-9EEA-5CDA244CFD80", "versionEndExcluding": "2.4.87.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:hevc_video_extensions_for_licensed_applications:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E6485951-0C12-43A8-852D-CFC36D1EF83B", "versionEndExcluding": "2.4.85.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:hevc_video_extensions_from_device_manufacturer:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "019E5D84-6E78-4C85-BE6D-CB3C382CF01F", "versionEndExcluding": "2.4.86.0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*", 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