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.NET NuGet

GHSA-467j-76j7-5885

MEDIUM

ImageMagick: Write heap-buffer-overflow in PCL encoder via undersized output buffer

Also known asCVE-2026-28686
Published
Mar 12, 2026
Updated
Mar 14, 2026
Affected
19 pkgs
Patched
19 / 19
Exploits
None indexed

EPSS Exploitation Probability

via FIRST.org ↗
0.1%probability of exploitation in next 30 days
Lower Risk2th percentile+0.09%
0.00%0.20%0.41%0.61%0.0%0.0%0.0%0.1%Apr 26Jun 26Jun 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

19 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+11 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 heap-buffer-overflow vulnerability exists in the PCL encode due to an undersized output buffer allocation.

WRITE of size 1 at 0x7e79f91f31a0 thread T0

Affected Packages

19 total 19 fixed
EcosystemPackageVulnerable rangeFix
.NETNuGetMagick.NET-Q16-AnyCPUall versions14.10.4
.NETNuGetMagick.NET-Q16-HDRI-AnyCPUall versions14.10.4
.NETNuGetMagick.NET-Q16-HDRI-OpenMP-arm64all versions14.10.4
.NETNuGetMagick.NET-Q16-HDRI-arm64all versions14.10.4
.NETNuGetMagick.NET-Q16-HDRI-x64all versions14.10.4
.NETNuGetMagick.NET-Q16-HDRI-x86all versions14.10.4

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 14.10.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-467j-76j7-5885 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-467j-76j7-5885 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-467j-76j7-5885. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

A heap-buffer-overflow vulnerability exists in the PCL encode due to an undersized output buffer allocation. ``` WRITE of size 1 at 0x7e79f91f31a0 thread T0 ```
O3 Security · Impact-Aware SCA

Is GHSA-467j-76j7-5885 in your dependencies?

O3 detects GHSA-467j-76j7-5885 across NuGet dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.