High severityNVD Advisory· Published Feb 24, 2026· Updated Feb 26, 2026
ImageMagick has heap-buffer-overflow via signed integer overflow in `WriteUHDRImage` when writing UHDR images with large dimensions
CVE-2026-25794
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
Magick.NET-Q16-AnyCPUNuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q16-HDRI-AnyCPUNuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q16-HDRI-OpenMP-arm64NuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q16-HDRI-OpenMP-x64NuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q16-HDRI-arm64NuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q16-HDRI-x64NuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q16-HDRI-x86NuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q16-OpenMP-arm64NuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q16-OpenMP-x64NuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q16-OpenMP-x86NuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q16-arm64NuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q16-x64NuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q16-x86NuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q8-AnyCPUNuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q8-OpenMP-arm64NuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q8-OpenMP-x64NuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q8-arm64NuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q8-x64NuGet | < 14.10.3 | 14.10.3 |
Magick.NET-Q8-x86NuGet | < 14.10.3 | 14.10.3 |
Affected products
23- osv-coords22 versionspkg:apk/chainguard/imagemagick-6pkg:nuget/magick.net-q16-anycpupkg:nuget/magick.net-q16-arm64pkg:nuget/magick.net-q16-hdri-anycpupkg:nuget/magick.net-q16-hdri-arm64pkg:nuget/magick.net-q16-hdri-openmp-arm64pkg:nuget/magick.net-q16-hdri-openmp-x64pkg:nuget/magick.net-q16-hdri-x64pkg:nuget/magick.net-q16-hdri-x86pkg:nuget/magick.net-q16-openmp-arm64pkg:nuget/magick.net-q16-openmp-x64pkg:nuget/magick.net-q16-openmp-x86pkg:nuget/magick.net-q16-x64pkg:nuget/magick.net-q16-x86pkg:nuget/magick.net-q8-anycpupkg:nuget/magick.net-q8-arm64pkg:nuget/magick.net-q8-openmp-arm64pkg:nuget/magick.net-q8-openmp-x64pkg:nuget/magick.net-q8-x64pkg:nuget/magick.net-q8-x86pkg:rpm/opensuse/ImageMagick&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/ImageMagick&distro=openSUSE%20Tumbleweed
< 0+ 21 more
- (no CPE)range: < 0
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 14.10.3
- (no CPE)range: < 7.1.2.0-160000.6.1
- (no CPE)range: < 7.1.2.15-1.1
- Range: < 7.1.2-15
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-vhqj-f5cj-9x8hghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-25794ghsaADVISORY
- github.com/ImageMagick/ImageMagick/commit/ffe589df5ff8ce1433daa4ccb0d2a9fadfbe30edghsaWEB
- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-vhqj-f5cj-9x8hghsax_refsource_CONFIRMWEB
- github.com/dlemstra/Magick.NET/releases/tag/14.10.3ghsaWEB
News mentions
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