CVE-2025-62821

critical · 9.1

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.

9.1

CVSS

1.1%

EPSS (exploit prob.)

63rd

EPSS percentile

2026-06-19

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Weaknesses

CWE-125

Affected products

Vendor	Product	Affected versions
microsoft	heif_image_extension	1.2.22.0

Check a specific version with /api/v1/cve/match.

References

https://github.com/hyunjungg/CVE-2025-62821
https://github.com/hyunjungg/CVE-2025-62821

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-62821