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.NET NuGet

GHSA-4v89-6mgq-6rgc

MEDIUM

ImageMagick has a Heap Buffer Over-Write in MAT decoder on 32-bit systems

Also known asCVE-2026-48994
Published
Jun 25, 2026
Updated
Jun 25, 2026
Affected
17 pkgs
Patched
17 / 17
Exploits
None indexed

EPSS Exploitation Probability

via FIRST.org ↗
0.2%probability of exploitation in next 30 days
Lower Risk14th percentile0.00%
0.00%0.24%0.48%0.73%0.2%0.2%Jul 26Jul 26

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

17 pkgs affected
.NETMagick.NET-Q16-AnyCPU.NETMagick.NET-Q16-HDRI-AnyCPU.NETMagick.NET-Q16-HDRI-OpenMP-arm64.NETMagick.NET-Q16-HDRI-arm64.NETMagick.NET-Q16-HDRI-x64.NETMagick.NET-Q16-HDRI-x86.NETMagick.NET-Q16-OpenMP-arm64.NETMagick.NET-Q16-OpenMP-x64+9 more

Real-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

A missing check of a return value could lead to a heap buffer over-write in the MAT decoder on 32-bit systems.

Affected Packages

17 total 17 fixed
EcosystemPackageVulnerable rangeFix
.NETNuGetMagick.NET-Q16-AnyCPUall versions14.14.0
.NETNuGetMagick.NET-Q16-HDRI-AnyCPUall versions14.14.0
.NETNuGetMagick.NET-Q16-HDRI-OpenMP-arm64all versions14.14.0
.NETNuGetMagick.NET-Q16-HDRI-arm64all versions14.14.0
.NETNuGetMagick.NET-Q16-HDRI-x64all versions14.14.0
.NETNuGetMagick.NET-Q16-HDRI-x86all versions14.14.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for Magick.NET-Q16-AnyCPU. 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.

  2. Fix

    Update Magick.NET-Q16-AnyCPU to 14.14.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-4v89-6mgq-6rgc is resolved across your whole dependency graph.

  3. Workarounds

    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.

  4. How O3 protects you

    O3 pinpoints whether GHSA-4v89-6mgq-6rgc 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 GHSA-4v89-6mgq-6rgc. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

A missing check of a return value could lead to a heap buffer over-write in the MAT decoder on 32-bit systems.
O3 Security · Impact-Aware SCA

Is GHSA-4v89-6mgq-6rgc in your dependencies?

O3 detects GHSA-4v89-6mgq-6rgc across NuGet dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.