medium5.9
CVE-2026-33900
ImageMagick has a heap overflow caused by integer overflow/wraparound in viff encoder on 32-bit builds
Impact
ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below both 7.1.2-19 and 6.9.13-44, the viff encoder contains an integer truncation/wraparound issue on 32-bit builds that could trigger an out of bounds heap write, potentially causing a crash. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| nuget | Magick.NET-Q16-AnyCPU | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q16-HDRI-AnyCPU | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q16-HDRI-x86 | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q16-x86 | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q8-AnyCPU | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q8-x86 | < 14.12.0 | 14.12.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Imagemagick | Imagemagick | before 6.9.13-44 from 7.0.0-0 before 7.1.2-19 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-v67w-737x-v2c9
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-v67w-737x-v2c9
- https://github.com/ImageMagick/ImageMagick/commit/d27b840a61b322419a66d0d192ff56d52498148d
- https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19
- https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0
- https://nvd.nist.gov/vuln/detail/CVE-2026-33900