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Advisory record · GHSA-3j4x-rwrx-xxj9

mageMagick has a possible use-after-free write in its PDB decoder

CVSS 6.3 MediumEPSS 0.0023 · 14th percentile

Published by the GitHub Advisory Database at 25 Feb 2026, 19:12 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
Magick.NET-Q16-AnyCPUNuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-AnyCPUNuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-OpenMP-arm64NuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-OpenMP-x64NuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-arm64NuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-x64NuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-x86NuGet<14.10.314.10.3
Magick.NET-Q16-OpenMP-arm64NuGet<14.10.314.10.3
Magick.NET-Q16-OpenMP-x64NuGet<14.10.314.10.3
Magick.NET-Q16-OpenMP-x86NuGet<14.10.314.10.3
Magick.NET-Q16-arm64NuGet<14.10.314.10.3
Magick.NET-Q16-x64NuGet<14.10.314.10.3
Magick.NET-Q16-x86NuGet<14.10.314.10.3
Magick.NET-Q8-AnyCPUNuGet<14.10.314.10.3
Magick.NET-Q8-OpenMP-arm64NuGet<14.10.314.10.3
Magick.NET-Q8-OpenMP-x64NuGet<14.10.314.10.3
Magick.NET-Q8-arm64NuGet<14.10.314.10.3
Magick.NET-Q8-x64NuGet<14.10.314.10.3
Magick.NET-Q8-x86NuGet<14.10.314.10.3
Identifiers
GHSA-3j4x-rwrx-xxj9 · CVE-2026-56373
Weakness (CWE)
CWE-416
Tags
Published
25 Feb 2026
Updated
11 Jul 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Magick.NET packages before 14.10.3 have a use-after-free in the PDB decoder, which uses a stale pointer after a memory allocation fails. This could cause a crash or a single zero byte write, and the source gives few details on what an attacker needs. Upgrade to version 14.10.3 or later.

Written 9 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.3 Medium 4.0 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0023, the 14th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:22 UTC First seen by agentprime
  2. 31 Oct 2026, 15:22 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.