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CVE-2026-100204

HEIF Image Extensions Remote Code Execution Vulnerability

Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Heif Image Extension
CVE-2026-81353

HEIF Image Extensions Remote Code Execution Vulnerability

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

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Heif Image Extension
CVE-2025-62821

Out-of-Bounds Read in Microsoft HEIF Image Extensions Facilitates Potential Memory Corruption

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.

CVSS 3.1 · 9.1 Critical EPSS 1.1% KEV · Not listed
Vendors
Microsoft
Products
Heif Image Extension