CVE-2026-100204highCWE-416

CVE-2026-100204: high-severity vulnerability in Microsoft HEIF Image Extension

HEIF Image Extensions Remote Code Execution Vulnerability

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41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 7epss 0.5%
from disclosure to weaponsame day
Published on NVDNov 10
1st PoCNov 8
Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.
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
Affected products
Microsoft · HEIF Image Extension
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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