CVE-2026-25987

A heap buffer over-read vulnerability exists in the MAP image decoder when processing crafted MAP files, potentially leading to crashes or unintended memory disclosure during image decoding.

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==4070926==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x502000002b31 at pc 0x56517afbd910 bp 0x7ffc59e90000 sp 0x7ffc59e8fff0
READ of size 1 at 0x502000002b31 thread T0

A read operation accesses a memory location beyond the intended buffer boundary. Typical impact: sensitive data disclosure or crash.

CVE-2026-25987 has a CVSS score of 5.3 (Medium). The vector is network-reachable, no privileges required, and no user interaction. 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 (14.10.3); upgrading removes the vulnerable code path.

Kodem intelligence

1. What is CVE-2026-25987? CVE-2026-25987 is a medium-severity out-of-bounds read vulnerability in Magick.NET-Q16-AnyCPU (nuget), affecting versions < 14.10.3. It is fixed in 14.10.3. A read operation accesses a memory location beyond the intended buffer boundary.
2. How severe is CVE-2026-25987? CVE-2026-25987 has a CVSS score of 5.3 (Medium). 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-2026-25987?
   • Magick.NET-Q16-AnyCPU (nuget) (versions < 14.10.3)
   • Magick.NET-Q16-HDRI-AnyCPU (nuget) (versions < 14.10.3)
   • Magick.NET-Q16-HDRI-OpenMP-arm64 (nuget) (versions < 14.10.3)
   • Magick.NET-Q16-HDRI-OpenMP-x64 (nuget) (versions < 14.10.3)
   • Magick.NET-Q16-HDRI-arm64 (nuget) (versions < 14.10.3)
   • Magick.NET-Q16-HDRI-x64 (nuget) (versions < 14.10.3)
   • Magick.NET-Q16-HDRI-x86 (nuget) (versions < 14.10.3)
   • Magick.NET-Q16-OpenMP-arm64 (nuget) (versions < 14.10.3)
   • Magick.NET-Q16-OpenMP-x64 (nuget) (versions < 14.10.3)
   • Magick.NET-Q16-OpenMP-x86 (nuget) (versions < 14.10.3)
   • Magick.NET-Q16-arm64 (nuget) (versions < 14.10.3)
   • Magick.NET-Q16-x64 (nuget) (versions < 14.10.3)
   • Magick.NET-Q16-x86 (nuget) (versions < 14.10.3)
   • Magick.NET-Q8-AnyCPU (nuget) (versions < 14.10.3)
   • Magick.NET-Q8-OpenMP-arm64 (nuget) (versions < 14.10.3)
   • Magick.NET-Q8-OpenMP-x64 (nuget) (versions < 14.10.3)
   • Magick.NET-Q8-arm64 (nuget) (versions < 14.10.3)
   • Magick.NET-Q8-x64 (nuget) (versions < 14.10.3)
   • Magick.NET-Q8-x86 (nuget) (versions < 14.10.3)
4. Is there a fix for CVE-2026-25987? Yes. CVE-2026-25987 is fixed in 14.10.3. Upgrade to this version or later.
5. Is CVE-2026-25987 exploitable, and should I be worried? Whether CVE-2026-25987 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-2026-25987 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-2026-25987?
   • Upgrade Magick.NET-Q16-AnyCPU to 14.10.3 or later
   • Upgrade Magick.NET-Q16-HDRI-AnyCPU to 14.10.3 or later
   • Upgrade Magick.NET-Q16-HDRI-OpenMP-arm64 to 14.10.3 or later
   • Upgrade Magick.NET-Q16-HDRI-OpenMP-x64 to 14.10.3 or later
   • Upgrade Magick.NET-Q16-HDRI-arm64 to 14.10.3 or later
   • Upgrade Magick.NET-Q16-HDRI-x64 to 14.10.3 or later
   • Upgrade Magick.NET-Q16-HDRI-x86 to 14.10.3 or later
   • Upgrade Magick.NET-Q16-OpenMP-arm64 to 14.10.3 or later
   • Upgrade Magick.NET-Q16-OpenMP-x64 to 14.10.3 or later
   • Upgrade Magick.NET-Q16-OpenMP-x86 to 14.10.3 or later
   • Upgrade Magick.NET-Q16-arm64 to 14.10.3 or later
   • Upgrade Magick.NET-Q16-x64 to 14.10.3 or later
   • Upgrade Magick.NET-Q16-x86 to 14.10.3 or later
   • Upgrade Magick.NET-Q8-AnyCPU to 14.10.3 or later
   • Upgrade Magick.NET-Q8-OpenMP-arm64 to 14.10.3 or later
   • Upgrade Magick.NET-Q8-OpenMP-x64 to 14.10.3 or later
   • Upgrade Magick.NET-Q8-arm64 to 14.10.3 or later
   • Upgrade Magick.NET-Q8-x64 to 14.10.3 or later
   • Upgrade Magick.NET-Q8-x86 to 14.10.3 or later