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Advisory record · GHSA-2cmq-823j-5qj8

Out-of-bounds Write in SixLabors ImageSharp

CVSS 7.5 HighEPSS 0.0057 · 47th percentile

Published by the GitHub Advisory Database at 6 Mar 2025, 22:23 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
SixLabors.ImageSharpNuGet>=3.0.0, <3.1.7 || <2.1.103.1.7, 2.1.10
Identifiers
GHSA-2cmq-823j-5qj8 · CVE-2025-27598
Weakness (CWE)
CWE-787
Tags
Published
6 Mar 2025
Updated
7 Mar 2025

Machine-written summary

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

SixLabors.ImageSharp versions before 2.1.10, and from 3.0.0 before 3.1.7, are affected by an out-of-bounds write in the GIF decoder. An attacker can exploit it by supplying a specially crafted GIF file, causing a crash that may lead to denial of service. Upgrade to version 3.1.7 or 2.1.10; no workaround is listed.

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
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0057, the 47th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 6 Mar 2025, 19:42 UTC Published by the maintainers as a GitHub repository advisory
  2. 31 Oct 2026, 15:22 UTC First seen by agentprime
  3. 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.