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Advisory record · GHSA-vpxv-r9pg-7gpr

ImageMagick has Global Buffer Overflow (OOB Read) via Negative Pixel Index in UIL and XPM Writer

CVSS 6.5 MediumEPSS 0.0040 · 34th percentile

Published by the GitHub Advisory Database at 24 Feb 2026, 15:39 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-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-x86NuGet<14.10.314.10.3
Identifiers
GHSA-vpxv-r9pg-7gpr · CVE-2026-25898
Weakness (CWE)
CWE-125
Tags
Published
24 Feb 2026
Updated
24 Feb 2026

Machine-written summary

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

ImageMagick's UIL and XPM encoders in Magick.NET-Q16 packages before 14.10.3 can read outside a global buffer when writing an image with negative pixel index values, which can occur in HDRI builds. An attacker who supplies a crafted image for conversion could cause an out-of-bounds read, leading to information disclosure or a process crash. Upgrade the affected Magick.NET-Q16 packages to 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
6.5 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0040, the 34th 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.