Vulnerability · Published Aug 26, 2025 · Assigned by GitHub_M
CVE-2025-57803ImageMagick (WriteBMPImage): 32-bit integer overflow when writing BMP scanline stride → heap buffer overflow
High 7.5
In plain English
A high-severity heap buffer overflow in ImageMagick from ImageMagick. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% 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 for ImageMagick's 32-bit build, a 32-bit integer overflow in the BMP encoder’s scanline-stride computation collapses bytes_per_line (stride) to a tiny value while the per-row writer still emits 3 × width bytes for 24-bpp images. The row base pointer advances using the (overflowed) stride, so the first row immediately writes past its slot and into adjacent heap memory with attacker-controlled bytes. This is a classic, powerful primitive for heap corruption in common auto-convert pipelines. 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-2025-57803 |
| Alpine:v3.24 | imagemagick | 7.1.2.8-r0 | ALPINE-CVE-2025-57803 |
| Debian:12 | imagemagick | 8:6.9.11.60+dfsg-1.6+deb12u4 | DEBIAN-CVE-2025-57803 |
| 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-2025-57803 |
| Debian:14 | imagemagick | 8:7.1.2.3+dfsg1-1 | DEBIAN-CVE-2025-57803 |
| NuGet | magick.net-q16-anycpu | 14.8.1 | GHSA-mxvv-97wh-cfmm |
| NuGet | magick.net-q16-hdri-anycpu | 14.8.1 | GHSA-mxvv-97wh-cfmm |
| NuGet | magick.net-q16-hdri-x86 | 14.8.1 | GHSA-mxvv-97wh-cfmm |
| NuGet | magick.net-q16-x86 | 14.8.1 | GHSA-mxvv-97wh-cfmm |
| NuGet | magick.net-q8-anycpu | 14.8.1 | GHSA-mxvv-97wh-cfmm |
| NuGet | magick.net-q8-x86 | 14.8.1 | GHSA-mxvv-97wh-cfmm |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ImageMagick | ImageMagick | < 7.1.2-2< 6.9.13-28 |
Weakness: CWE-122, CWE-190 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-mxvv-97wh-cfmm x_refsource_CONFIRM
- https://github.com/ImageMagick/ImageMagick/commit/2c55221f4d38193adcb51056c14cf238fbcc35d7 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