Unrated severityNVD Advisory· Published Jun 19, 2026· Updated Jun 19, 2026
CVE-2025-62821
CVE-2025-62821
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: =1.2.22.0
Patches
Vulnerability mechanics
News mentions
1- Microsoft Cloud Batch: 13 CVEs Across Copilot, Azure, Exchange, and Developer ToolsVypr Intelligence · Jun 19, 2026