{"@odata.context":"https://api.msrc.microsoft.com/sug/v2.0/sugodata/v2.0/en-US/$metadata#vulnerability/$entity","id":"00000000-0000-0000-0000-00006593ad4e","releaseDate":"2026-11-10T08:00:00-08:00","cveNumber":"CVE-2026-100204","cveTitle":"HEIF Image Extensions Remote Code Execution Vulnerability","releaseNumber":"2026-Nov","vulnType":"Security Vulnerability","latestRevisionDate":"2026-11-10T08:00:00-08:00","description":"<p>Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.</p>\n","cweList":["CWE-416: Use After Free"],"cweDetailsListForSearch":["cwe: CWE-416: Use After Free","cweUrl: https://cwe.mitre.org/data/definitions/416.html"],"unformattedDescription":"<p>Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.</p>","mitreText":"CVE-2026-100204","mitreUrl":"https://www.cve.org/CVERecord?id=CVE-2026-100204","publiclyDisclosed":"No","exploited":"No","latestSoftwareReleaseId":2,"latestSoftwareRelease":"Exploitation Less Likely","olderSoftwareReleaseId":0,"denialOfService":"N/A","tag":"HEIF Image Extensions","issuingCna":"Microsoft","issuingCnaId":100000001,"severityId":100000001,"severity":"Important","impactId":100000005,"impact":"Remote Code Execution","langCode":"en-US","baseScore":"7.0","temporalScore":"6.1","vectorString":"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","vectorStringSource":"Microsoft","isMariner":false,"customerActionRequired":true,"customerActionRequiredId":1,"cweDetailsList":[{"keys":["cwe","cweUrl"],"values":["CWE-416: Use After Free","https://cwe.mitre.org/data/definitions/416.html"]}],"articles":[{"articleType":"FAQ","description":"<p><strong>According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?</strong></p>\n<p>Successful exploitation of this vulnerability requires an attacker to have a deep understanding of the system. Successful exploitation is not guaranteed and depends on a combination of factors that might include the environment, system configuration, and the presence of additional security measures.</p>\n","ordinal":10000},{"title":"HEIF Image Extensions Remote Code Execution Vulnerability","articleType":"100000000","description":"<p>Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.</p>\n","ordinal":10000},{"title":"HEIF Image Extensions Remote Code Execution Vulnerability","articleType":"100000000","description":"<p>Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.</p>\n","ordinal":10000},{"title":"HEIF Image Extensions Remote Code Execution Vulnerability","articleType":"100000000","description":"<p>Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.</p>\n","ordinal":10000}],"revisions":[{"cveNumber":"CVE-2026-100204","version":1,"revisionDate":"2026-11-10T08:00:00-08:00","initialDate":"0001-01-01T00:00:00Z","description":"<p>Information published.</p>\n","unformattedDescription":"Information published.","notificationNeeded":false,"notificationSent":false,"sourceId":"7c0169fb-f7b8-f111-93fe-000d3afbc7d7"}]}