CVE-2026-25898 — Imagemagick Has Global Buffer Overflow (OOB Read) via Negative Pixel Index in UIL and XPM Writer

Description (CNA)

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 (CNA)

Vendor / product	Versions
ImageMagick / ImageMagick	affected >= 7.0.0, < 7.1.2-15; affected < 6.9.13-40

CWE

CWE-125

References

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-vpxv-r9pg-7gpr

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.