CVE-2025-62594
MEDIUMCVE-2025-62594 is a medium-severity (CVSS 4.7) Buffer Overflow vulnerability in Magick.NET-Q16-x64. O3 Security confirms whether CVE-2025-62594 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
ImageMagick CLAHE : Unsigned underflow and division-by-zero lead to OOB pointer arithmetic and process crash (DoS)
Blast Radius
Magick.NET-Q16-x64.NETMagick.NET-Q8-x64.NETMagick.NET-Q16-HDRI-x64.NETMagick.NET-Q8-OpenMP-x64.NETMagick.NET-Q16-HDRI-OpenMP-x64.NETMagick.NET-Q16-OpenMP-x64.NETMagick.NET-Q8-arm64.NETMagick.NET-Q16-arm64+4 moreReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects NuGet packages — download data is not available via public APIs for these ecosystems.
Description
ImageMagick is a software suite to create, edit, compose, or convert bitmap images. ImageMagick versions prior to 7.1.2-8 are vulnerable to denial-of-service due to unsigned integer underflow and division-by-zero in the CLAHEImage function. When tile width or height is zero, unsigned underflow occurs in pointer arithmetic, leading to out-of-bounds memory access, and division-by-zero causes immediate crashes. This issue has been patched in version 7.1.2-8.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| .NETNuGet | Magick.NET-Q16-x64 | all versions | No fix |
| .NETNuGet | Magick.NET-Q8-x64 | all versions | No fix |
| .NETNuGet | Magick.NET-Q16-HDRI-x64 | all versions | No fix |
| .NETNuGet | Magick.NET-Q8-OpenMP-x64 | all versions | No fix |
| .NETNuGet | Magick.NET-Q16-HDRI-OpenMP-x64 | all versions | No fix |
| .NETNuGet | Magick.NET-Q16-OpenMP-x64 | all versions | No fix |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for Magick.NET-Q16-x64. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Remediation status
No patched version of Magick.NET-Q16-x64 has shipped for CVE-2025-62594 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2025-62594 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2025-62594. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2025-62594 in your dependencies?
O3 detects CVE-2025-62594 across NuGet dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.