CVE-2026-25794: ImageMagick

High severity, CVSS 8.2. EPSS: 0.6% chance of exploitation in the next 30 days.

ImageMagick is free and open-source software used for editing and manipulating digital images. `WriteUHDRImage` in `coders/uhdr.c` uses `int` arithmetic to compute the pixel buffer size. Prior to version 7.1.2-15, when image dimensions are large, the multiplication overflows 32-bit `int`, causing an undersized heap allocation followed by an out-of-bounds write. This can crash the process or potentially lead to an out of bounds heap write. Version 7.1.2-15 contains a patch.

Affected products

• ImageMagick ImageMagick: before 7.1.2-15 (fixed in 7.1.2-15)

Published 2026-02-24. Last modified 2026-07-15.