CVEvulnerability
CVE-2025-62821
9.1 CRITICAL
Official page ↗
- Status
- Analyzed
- Published
- 2026-06-19
- Last modified
- 2026-10-12
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- Weaknesses
- CWE-125
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.
Affected configurations
• microsoft heif image extension 1.2.22.0
Related
Weakness · CWE (1)
- CWE-125 Out-of-bounds Read weakness
References
- https://github.com/hyunjungg/CVE-2025-62821 Exploit, Third Party Advisory
- https://github.com/hyunjungg/CVE-2025-62821 Exploit, Third Party Advisory