{"id":"CVE-2026-58600","aliases":["EUVD-2026-73077","GHSA-j9hq-499p-g5xg"],"status":"published","title":"HEVC Video Extensions Elevation of Privilege Vulnerability","description":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to elevate privileges 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":"2026-11-09","score":0.00466,"percentile":0.4066,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-09-08T17:12:19Z","modified":"2026-10-31T16:11:05Z","products":[{"vendor":"microsoft","product":"hevc video extensions"},{"vendor":"microsoft","product":"hevc video extensions for licensed applications"},{"vendor":"microsoft","product":"hevc video extensions from device manufacturer"},{"vendor":"microsoft","product":"hevc_video_extensions"},{"vendor":"microsoft","product":"hevc_video_extensions_for_licensed_applications"},{"vendor":"microsoft","product":"hevc_video_extensions_from_device_manufacturer"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58600","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58600"},{"url":"https://github.com/advisories/GHSA-j9hq-499p-g5xg"}],"sources":{"cve":[{"id":"CVE-2026-58600","title":"HEVC Video Extensions Elevation of Privilege Vulnerability","description":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T17:12:19.074Z","modified":"2026-10-31T16:11:05.681Z","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":"2026-11-02T13:47:28.691429Z"}],"euvd":[{"id":"EUVD-2026-73077","description":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T17:12:19Z","modified":"2026-10-31T16:11:05Z","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":"2026-11-02T16:59:00.017351Z"}],"ghsa":[{"id":"GHSA-j9hq-499p-g5xg","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 elevate privileges locally.","status":"published","published":"2026-09-08T18:32:04Z","modified":"2026-09-08T18:32:10Z","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":"2026-11-02T15:11:29.303164Z"}],"nvd":[{"id":"CVE-2026-58600","description":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T18:17:43.923Z","modified":"2026-10-01T16:33:41.593Z","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":"2026-11-02T14:12:44.436435Z"}]}}