CVE-2026-25637

A memory leak in the ASHLAR image writer allows an attacker to exhaust process memory by providing a crafted image that results in small objects that are allocated but never freed.

==880062== Memcheck, a memory error detector
==880062== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==880062== Using Valgrind-3.18.1 and LibVEX; rerun with -h for copyright info
==880062== 
==880062== 
==880062== HEAP SUMMARY:
==880062==     in use at exit: 386,826 bytes in 696 blocks
==880062==   total heap usage: 30,523 allocs, 29,827 frees, 21,803,756 bytes allocated
==880062== 
==880062== LEAK SUMMARY:
==880062==    definitely lost: 3,408 bytes in 3 blocks
==880062==    indirectly lost: 88,885 bytes in 30 blocks
==880062==      possibly lost: 140,944 bytes in 383 blocks
==880062==    still reachable: 151,573 bytes in 259 blocks
==880062==         suppressed: 0 bytes in 0 blocks
==880062== Reachable blocks (those to which a pointer was found) are not shown.
==880062== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==880062== 
==880062== For lists of detected and suppressed errors, rerun with: -s
==880062== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)

CVE-2026-25637 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-2026-25637? CVE-2026-25637 is a medium-severity security vulnerability in Magick.NET-Q16-AnyCPU (nuget), affecting versions < 14.10.3. It is fixed in 14.10.3.
2. How severe is CVE-2026-25637? CVE-2026-25637 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-2026-25637?
   • 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-2026-25637? Yes. CVE-2026-25637 is fixed in 14.10.3. Upgrade to this version or later.
5. Is CVE-2026-25637 exploitable, and should I be worried? Whether CVE-2026-25637 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-2026-25637 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-2026-25637?
   • 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