{"id":"CVE-2026-81353","aliases":["EUVD-2026-73849","GHSA-cpq5-3rf7-qrjm"],"status":"published","title":"HEIF Image Extensions Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00466,"percentile":0.40698,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-09-08T17:18:50Z","modified":"2026-11-10T21:37:52Z","products":[{"vendor":"microsoft","product":"heif image extension"},{"vendor":"microsoft","product":"heif_image_extension"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81353","tags":["vendor-advisory","patch","Vendor Advisory","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-81353"},{"url":"https://github.com/advisories/GHSA-cpq5-3rf7-qrjm"}],"sources":{"cve":[{"id":"CVE-2026-81353","title":"HEIF Image Extensions Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-09-08T17:18:50.797Z","modified":"2026-11-10T21:37:52.612Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-10T22:48:54.14451Z"}],"euvd":[{"id":"EUVD-2026-73849","description":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-09-08T17:18:50Z","modified":"2026-11-10T21:37:52Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T23:24:19.311812Z"}],"ghsa":[{"id":"GHSA-cpq5-3rf7-qrjm","title":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to...","description":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-09-08T18:33:29Z","modified":"2026-09-08T18:34:17Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:11:34.690977Z"}],"nvd":[{"id":"CVE-2026-81353","description":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-09-08T18:20:53.07Z","modified":"2026-09-17T19:03:59.36Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:12:45.264578Z"}]}}