{"id":"CVE-2026-100204","aliases":["EUVD-2026-121721","GHSA-wq58-gp4p-hwh6"],"status":"published","title":"HEIF Image Extensions Remote Code Execution Vulnerability","description":"Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/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":0.00481,"percentile":0.41978,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-416"],"published":"2026-11-10T18:15:06Z","modified":"2026-11-11T11:41:45Z","exploits":[{"source":"pocgithub","id":"OntologicallyGood/property-damage","title":"OntologicallyGood/property-damage","date":"2026-11-08","url":"https://github.com/OntologicallyGood/property-damage"}],"products":[{"vendor":"microsoft","product":"heif image extension"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-100204","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100204"},{"url":"https://github.com/advisories/GHSA-wq58-gp4p-hwh6"}],"sources":{"cve":[{"id":"CVE-2026-100204","title":"HEIF Image Extensions Remote Code Execution Vulnerability","description":"Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-11-10T18:15:06.246Z","modified":"2026-11-12T21:42:17.083Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-10T19:39:57.855077Z"}],"euvd":[{"id":"EUVD-2026-121721","description":"Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-11-10T18:15:06Z","modified":"2026-11-12T21:42:17Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T23:24:26.253897Z"}],"ghsa":[{"id":"GHSA-wq58-gp4p-hwh6","title":"Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.","description":"Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-11-10T21:32:16Z","modified":"2026-11-10T21:32:17Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-416"],"updated_at":"2026-11-10T21:57:47.623655Z"}],"nvd":[{"id":"CVE-2026-100204","description":"Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-11-10T19:17:39.033Z","modified":"2026-11-10T22:17:47.313Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-11T00:21:53.860815Z"}]}}