{"api_version":"1","generated_at":"2026-10-28T23:10:45+00:00","cve":"CVE-2026-108400","urls":{"html":"https://cve.report/CVE-2026-108400","api":"https://cve.report/api/cve/CVE-2026-108400.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-108400","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-108400"},"summary":{"title":"HEVC Video Extensions Remote Code Execution Vulnerability","description":"Integer overflow or wraparound in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.","state":"PUBLISHED","assigner":"microsoft","published_at":"2026-10-13 19:18:05","updated_at":"2026-10-13 23:17:30"},"problem_types":["CWE-190","CWE-190 CWE-190: Integer Overflow or Wraparound"],"metrics":[{"version":"3.1","source":"secure@microsoft.com","type":"Secondary","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","data":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"}}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-108400","name":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-108400","refsource":"secure@microsoft.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-108400","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108400","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Microsoft","product":"HEVC Video Extensions","version":"affected 1.0.0 2.4.87.0 custom","platforms":[]},{"source":"CNA","vendor":"Microsoft","product":"HEVC Video Extensions for Licensed Applications","version":"affected 2.0.0.0 2.4.85.0 custom","platforms":[]},{"source":"CNA","vendor":"Microsoft","product":"HEVC Video Extensions from Device Manufacturer","version":"affected 2.0.0.0 2.5.25.0 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)"]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-108400","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-10-13T22:10:22.226494Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-10-13T22:16:37.446Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"HEVC Video Extensions","vendor":"Microsoft","versions":[{"lessThan":"2.4.87.0","status":"affected","version":"1.0.0","versionType":"custom"}]},{"product":"HEVC Video Extensions for Licensed Applications","vendor":"Microsoft","versions":[{"lessThan":"2.4.85.0","status":"affected","version":"2.0.0.0","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)"],"product":"HEVC Video Extensions from Device Manufacturer","vendor":"Microsoft","versions":[{"lessThan":"2.5.25.0","status":"affected","version":"2.0.0.0","versionType":"custom"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:microsoft:hevc_video_extensions_from_device_manufacturer:*:*:*:*:*:*:*:*","versionEndExcluding":"2.5.25.0","versionStartIncluding":"2.0.0.0","vulnerable":true},{"criteria":"cpe:2.3:a:microsoft:hevc_video_extensions_for_licensed_appplications:*:*:*:*:*:*:*:*","versionEndExcluding":"2.4.85.0","versionStartIncluding":"2.0.0.0","vulnerable":true},{"criteria":"cpe:2.3:a:microsoft:hevc_video_extensions:*:*:*:*:*:*:*:*","versionEndExcluding":"2.4.87.0","versionStartIncluding":"1.0.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"datePublic":"2026-10-13T14:00:00.000Z","descriptions":[{"lang":"en-US","value":"Integer overflow or wraparound in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network."}],"metrics":[{"cvssV3_1":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-190","description":"CWE-190: Integer Overflow or Wraparound","lang":"en-US","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-13T22:13:11.400Z","orgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","shortName":"microsoft"},"references":[{"name":"HEVC Video Extensions Remote Code Execution Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-108400"}],"title":"HEVC Video Extensions Remote Code Execution Vulnerability"}},"cveMetadata":{"assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","assignerShortName":"microsoft","cveId":"CVE-2026-108400","datePublished":"2026-10-13T18:59:24.362Z","dateReserved":"2026-10-09T21:52:56.474Z","dateUpdated":"2026-10-13T22:16:37.446Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-13 19:18:05","lastModifiedDate":"2026-10-13 23:17:30","problem_types":["CWE-190","CWE-190 CWE-190: Integer Overflow or Wraparound"],"metrics":{"cvssMetricV31":[{"source":"secure@microsoft.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-13T22:10:22.226494Z","id":"CVE-2026-108400","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"108400","Ordinal":"1","Title":"HEVC Video Extensions Remote Code Execution Vulnerability","CVE":"CVE-2026-108400","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"108400","Ordinal":"1","NoteData":"Integer overflow or wraparound in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.","Type":"Description","Title":"HEVC Video Extensions Remote Code Execution Vulnerability"}]}}}