{"id":"CVE-2026-114164","aliases":["EUVD-2026-121542","GHSA-wp79-hhjx-7wrx"],"status":"published","title":"HEVC Video Extensions Remote Code Execution Vulnerability","description":"Integer underflow (wrap or wraparound) in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":8.8,"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00869,"percentile":0.59246,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-191"],"published":"2026-11-10T18:15:13Z","modified":"2026-11-10T21:32:59Z","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"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-114164","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114164"},{"url":"https://github.com/advisories/GHSA-wp79-hhjx-7wrx"}],"sources":{"cve":[{"id":"CVE-2026-114164","title":"HEVC Video Extensions Remote Code Execution Vulnerability","description":"Integer underflow (wrap or wraparound) in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T18:15:13.134Z","modified":"2026-11-12T21:42:24.216Z","cvss":[{"version":"3.1","score":8.8,"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","level":"high","assessor":"cna"}],"cwes":["CWE-191"],"updated_at":"2026-11-10T19:39:58.44836Z"}],"euvd":[{"id":"EUVD-2026-121542","description":"Integer underflow (wrap or wraparound) in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T18:15:13Z","modified":"2026-11-12T21:42:24Z","cvss":[{"version":"3.1","score":8.8,"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","level":"high"}],"updated_at":"2026-11-10T23:24:33.201322Z"}],"ghsa":[{"id":"GHSA-wp79-hhjx-7wrx","title":"Integer underflow (wrap or wraparound) in Microsoft Windows Codecs Library allows an unauthorized...","description":"Integer underflow (wrap or wraparound) in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T21:32:52Z","modified":"2026-11-10T21:32:59Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-191"],"updated_at":"2026-11-10T21:57:51.137748Z"}],"nvd":[{"id":"CVE-2026-114164","description":"Integer underflow (wrap or wraparound) in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T19:19:09.963Z","modified":"2026-11-10T20:18:02.617Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-191"],"updated_at":"2026-11-10T22:21:32.984056Z"}]}}