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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 8:7.1.1.43+dfsg1-1+deb13u6 |
| sid | Fixed | 8:7.1.2.15+dfsg1-1 |
| forky | Fixed | 8:7.1.2.15+dfsg1-1 |
| bullseye | Fixed | 0 |
| bookworm | Fixed | 0 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| NuGet | Magick.NET-Q16-AnyCPU | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-HDRI-AnyCPU | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-HDRI-OpenMP-arm64 | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-HDRI-OpenMP-x64 | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-HDRI-arm64 | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-HDRI-x64 | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-HDRI-x86 | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-OpenMP-arm64 | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-OpenMP-x64 | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-OpenMP-x86 | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-arm64 | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-x64 | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-x86 | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q8-AnyCPU | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q8-OpenMP-arm64 | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q8-OpenMP-x64 | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q8-arm64 | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q8-x64 | <14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q8-x86 | <14.10.3 | 14.10.3 |
References
- https://security-tracker.debian.org/tracker/CVE-2026-25794
- https://www.suse.com/security/cve/CVE-2026-25794.html
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-vhqj-f5cj-9x8h
- https://nvd.nist.gov/vuln/detail/CVE-2026-25794
- https://github.com/ImageMagick/ImageMagick/commit/ffe589df5ff8ce1433daa4ccb0d2a9fadfbe30ed
- https://github.com/ImageMagick/ImageMagick
- https://github.com/dlemstra/Magick.NET/releases/tag/14.10.3
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.