Vulnerability · Published Aug 26, 2025 · Assigned by GitHub_M
CVE-2025-55212ImageMagick affected by divide-by-zero in ThumbnailImage via montage -geometry ":" leads to crash
Low 3.7
In plain English
A low-severity security flaw in ImageMagick from ImageMagick. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-28 and 7.1.2-2, passing a geometry string containing only a colon (":") to montage -geometry leads GetGeometry() to set width/height to 0. Later, ThumbnailImage() divides by these zero dimensions, triggering a crash (SIGFPE/abort), resulting in a denial of service. This issue has been patched in versions 6.9.13-28 and 7.1.2-2.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | imagemagick | 7.1.2.8-r0 | ALPINE-CVE-2025-55212 |
| Alpine:v3.24 | imagemagick | 7.1.2.8-r0 | ALPINE-CVE-2025-55212 |
| Debian:12 | imagemagick | 8:6.9.11.60+dfsg-1.6+deb12u4 | DEBIAN-CVE-2025-55212 |
| Debian:12 | imagemagick | 8:6.9.11.60+dfsg-1.6+deb12u4 | DSA-5997-1 |
| Debian:13 | imagemagick | 8:7.1.1.43+dfsg1-1+deb13u2 | DSA-5997-1 |
| Debian:13 | imagemagick | 8:7.1.1.43+dfsg1-1+deb13u2 | DEBIAN-CVE-2025-55212 |
| Debian:14 | imagemagick | 8:7.1.2.3+dfsg1-1 | DEBIAN-CVE-2025-55212 |
| NuGet | magick.net-q16-anycpu | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q16-arm64 | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q16-hdri-anycpu | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q16-hdri-arm64 | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q16-hdri-openmp-arm64 | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q16-hdri-openmp-x64 | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q16-hdri-x64 | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q16-hdri-x86 | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q16-openmp-arm64 | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q16-openmp-x64 | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q16-x64 | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q16-x86 | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q8-anycpu | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q8-arm64 | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q8-openmp-arm64 | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q8-openmp-x64 | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q8-x64 | 14.8.1 | GHSA-fh55-q5pj-pxgw |
| NuGet | magick.net-q8-x86 | 14.8.1 | GHSA-fh55-q5pj-pxgw |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ImageMagick | ImageMagick | < 7.1.2-2< 6.9.13-28 |
Weakness: CWE-369 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-fh55-q5pj-pxgw x_refsource_CONFIRM
- https://github.com/ImageMagick/ImageMagick/commit/5f0bcf986b8b5e90567750d31a37af502b73f2af x_refsource_MISC
- https://github.com/ImageMagick/ImageMagick/blob/0ba1b587be17543b664f7ad538e9e51e0da59d17/MagickCore/geometry.c#L355 x_refsource_MISC
- https://github.com/ImageMagick/ImageMagick/blob/0ba1b587be17543b664f7ad538e9e51e0da59d17/MagickCore/resize.c#L4625-L4629 x_refsource_MISC
- https://github.com/dlemstra/Magick.NET/releases/tag/14.8.1 x_refsource_MISC
- https://lists.debian.org/debian-lts-announce/2025/09/msg00012.html