CVE-2026-25898: ImageMagick

Critical severity, CVSS 9.1. EPSS: 0.5% chance of exploitation in the next 30 days.

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, the UIL and XPM image encoder do not validate the pixel index value returned by `GetPixelIndex()` before using it as an array subscript. In HDRI builds, `Quantum` is a floating-point type, so pixel index values can be negative. An attacker can craft an image with negative pixel index values to trigger a global buffer overflow read during conversion, leading to information disclosure or a process crash. Versions 7.1.2-15 and 6.9.13-40 contain a patch.

Affected products

• ImageMagick ImageMagick: before 6.9.13-40 (fixed in 6.9.13-40); from 7.0.0-0, before 7.1.2-15 (fixed in 7.1.2-15)

Published 2026-02-24. Last modified 2026-06-17.