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Moderate severityNVD Advisory· Published Feb 24, 2026· Updated Feb 26, 2026

Imagemagick Has Global Buffer Overflow (OOB Read) via Negative Pixel Index in UIL and XPM Writer

CVE-2026-25898

Description

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
Magick.NET-Q16-AnyCPUNuGet
< 14.10.314.10.3
Magick.NET-Q16-HDRI-AnyCPUNuGet
< 14.10.314.10.3
Magick.NET-Q16-HDRI-OpenMP-arm64NuGet
< 14.10.314.10.3
Magick.NET-Q16-HDRI-OpenMP-x64NuGet
< 14.10.314.10.3
Magick.NET-Q16-HDRI-arm64NuGet
< 14.10.314.10.3
Magick.NET-Q16-HDRI-x64NuGet
< 14.10.314.10.3
Magick.NET-Q16-OpenMP-arm64NuGet
< 14.10.314.10.3
Magick.NET-Q16-OpenMP-x64NuGet
< 14.10.314.10.3
Magick.NET-Q16-OpenMP-x86NuGet
< 14.10.314.10.3
Magick.NET-Q16-arm64NuGet
< 14.10.314.10.3
Magick.NET-Q16-x64NuGet
< 14.10.314.10.3
Magick.NET-Q16-x86NuGet
< 14.10.314.10.3
Magick.NET-Q8-AnyCPUNuGet
< 14.10.314.10.3
Magick.NET-Q8-OpenMP-arm64NuGet
< 14.10.314.10.3
Magick.NET-Q8-OpenMP-x64NuGet
< 14.10.314.10.3
Magick.NET-Q8-arm64NuGet
< 14.10.314.10.3
Magick.NET-Q8-x86NuGet
< 14.10.314.10.3

Affected products

33

Patches

Vulnerability mechanics

References

5

News mentions

0

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