CVE-2025-62821
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Jun 19, 2026
Vendor
unknown
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.