CVE-2025-57807: ImageMagick

Critical severity, CVSS 9.8. EPSS: 0.3% chance of exploitation in the next 30 days.

ImageMagick is free and open-source software used for editing and manipulating digital images. ImageMagick versions lower than 14.8.2 include insecure functions: SeekBlob(), which permits advancing the stream offset beyond the current end without increasing capacity, and WriteBlob(), which then expands by quantum + length (amortized) instead of offset + length, and copies to data + offset. When offset ≫ extent, the copy targets memory beyond the allocation, producing a deterministic heap write on 64-bit builds. No 2⁶⁴ arithmetic wrap, external delegates, or policy settings are required. This is fixed in version 14.8.2.

Affected products

• ImageMagick ImageMagick: before 6.9.13-29 (fixed in 6.9.13-29); from 7.0.0-0, before 7.1.2-3 (fixed in 7.1.2-3)

Published 2025-09-05. Last modified 2026-06-17.