CVE-2026-81353: Microsoft Heif Image Extension

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code locally.

Affected products

• Microsoft Heif Image Extension: before 1.2.48.0 (fixed in 1.2.48.0)

Published 2026-09-08. Last modified 2026-09-17.