CVE-2026-28494

A stack buffer overflow exists in ImageMagick's morphology kernel parsing functions. User-controlled kernel strings exceeding a buffer are copied into fixed-size stack buffers via memcpy without bounds checking, resulting in stack corruption.

CVE-2026-28494 has a CVSS score of 7.1 (High). The vector is requires local access, no privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (14.10.4); upgrading removes the vulnerable code path.

Kodem intelligence

1. What is CVE-2026-28494? CVE-2026-28494 is a high-severity security vulnerability in Magick.NET-Q16-AnyCPU (nuget), affecting versions < 14.10.4. It is fixed in 14.10.4.
2. How severe is CVE-2026-28494? CVE-2026-28494 has a CVSS score of 7.1 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which packages are affected by CVE-2026-28494?
   • Magick.NET-Q16-AnyCPU (nuget) (versions < 14.10.4)
   • Magick.NET-Q16-HDRI-AnyCPU (nuget) (versions < 14.10.4)
   • Magick.NET-Q16-HDRI-OpenMP-arm64 (nuget) (versions < 14.10.4)
   • Magick.NET-Q16-HDRI-arm64 (nuget) (versions < 14.10.4)
   • Magick.NET-Q16-HDRI-x64 (nuget) (versions < 14.10.4)
   • Magick.NET-Q16-HDRI-x86 (nuget) (versions < 14.10.4)
   • Magick.NET-Q16-OpenMP-arm64 (nuget) (versions < 14.10.4)
   • Magick.NET-Q16-OpenMP-x64 (nuget) (versions < 14.10.4)
   • Magick.NET-Q16-OpenMP-x86 (nuget) (versions < 14.10.4)
   • Magick.NET-Q16-arm64 (nuget) (versions < 14.10.4)
   • Magick.NET-Q16-x64 (nuget) (versions < 14.10.4)
   • Magick.NET-Q16-x86 (nuget) (versions < 14.10.4)
   • Magick.NET-Q16-HDRI-OpenMP-x64 (nuget) (versions < 14.10.4)
   • Magick.NET-Q8-AnyCPU (nuget) (versions < 14.10.4)
   • Magick.NET-Q8-OpenMP-arm64 (nuget) (versions < 14.10.4)
   • Magick.NET-Q8-OpenMP-x64 (nuget) (versions < 14.10.4)
   • Magick.NET-Q8-arm64 (nuget) (versions < 14.10.4)
   • Magick.NET-Q8-x64 (nuget) (versions < 14.10.4)
   • Magick.NET-Q8-x86 (nuget) (versions < 14.10.4)
4. Is there a fix for CVE-2026-28494? Yes. CVE-2026-28494 is fixed in 14.10.4. Upgrade to this version or later.
5. Is CVE-2026-28494 exploitable, and should I be worried? Whether CVE-2026-28494 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2026-28494 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2026-28494?
   • Upgrade Magick.NET-Q16-AnyCPU to 14.10.4 or later
   • Upgrade Magick.NET-Q16-HDRI-AnyCPU to 14.10.4 or later
   • Upgrade Magick.NET-Q16-HDRI-OpenMP-arm64 to 14.10.4 or later
   • Upgrade Magick.NET-Q16-HDRI-arm64 to 14.10.4 or later
   • Upgrade Magick.NET-Q16-HDRI-x64 to 14.10.4 or later
   • Upgrade Magick.NET-Q16-HDRI-x86 to 14.10.4 or later
   • Upgrade Magick.NET-Q16-OpenMP-arm64 to 14.10.4 or later
   • Upgrade Magick.NET-Q16-OpenMP-x64 to 14.10.4 or later
   • Upgrade Magick.NET-Q16-OpenMP-x86 to 14.10.4 or later
   • Upgrade Magick.NET-Q16-arm64 to 14.10.4 or later
   • Upgrade Magick.NET-Q16-x64 to 14.10.4 or later
   • Upgrade Magick.NET-Q16-x86 to 14.10.4 or later
   • Upgrade Magick.NET-Q16-HDRI-OpenMP-x64 to 14.10.4 or later
   • Upgrade Magick.NET-Q8-AnyCPU to 14.10.4 or later
   • Upgrade Magick.NET-Q8-OpenMP-arm64 to 14.10.4 or later
   • Upgrade Magick.NET-Q8-OpenMP-x64 to 14.10.4 or later
   • Upgrade Magick.NET-Q8-arm64 to 14.10.4 or later
   • Upgrade Magick.NET-Q8-x64 to 14.10.4 or later
   • Upgrade Magick.NET-Q8-x86 to 14.10.4 or later