Microsoft Heif Image Extension vulnerabilities

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Published CVEs affecting Microsoft Heif Image Extension: 2 record(s), with affected versions and fixes.
cpe:2.3:a:microsoft:heif_image_extension

CVE-2026-81353 High · 7.8 CWE-122 Sep 8, 2026

HEIF Image Extensions Remote Code Execution Vulnerability

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

CVE-2025-62821 Critical · 9.1 CWE-125 Jun 19, 2026

Out-of-bounds Read in Microsoft Heif Image Extension

Microsoft HEIF Image Extensions 1.2.22.0 has an out-of-bounds read because CHEIFItemInfoEntry_GetDataSize can return success while leaving the reported data size as 0. This causes a caller to make a 1-byte allocation. Later, CopyPixels computes copy_size = stride * abs(roi_height) but does not check the source buffer length before a memmove call.