CVE-2026-100204

HEIF Image Extensions Remote Code Execution Vulnerability

Published Nov 10, 2026 CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed
Description
Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.
Title HEIF Image Extensions Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft heif Image Extension
Weaknesses CWE-416
CPEs cpe:2.3:a:microsoft:heif_image_extension:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft heif Image Extension
References
Metrics cvssV3_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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 12, 2026, 9:42 PM
Reserved
Sep 25, 2026, 3:11 PM
Status
Awaiting Analysis
Published
Nov 10, 2026, 7:17 PM
Modified
Nov 10, 2026, 10:17 PM