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Advisory record · GHSA-389x-839f-4rhx

Denial of Service attack on windows app using Netty

CVSS 5.5 MediumEPSS 0.0039 · 33rd percentile

Published by the GitHub Advisory Database at 10 Feb 2025, 18:14 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
io.netty:netty-commonMaven<4.1.118.Final4.1.118.Final
Identifiers
GHSA-389x-839f-4rhx · CVE-2025-25193
Weakness (CWE)
CWE-400
Tags
Published
10 Feb 2025
Updated
10 Sept 2026

Machine-written summary

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

The io.netty:netty-common package is vulnerable before 4.1.118.Final. On Windows, Netty tries to read a file that does not exist, and an attacker who can create a very large file with null bytes in that location can crash the application, causing a denial of service. Upgrade to netty-common 4.1.118.Final or later.

Written 2 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
5.5 Medium 3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0039, the 33rd percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:17 UTC First seen by agentprime
  2. 31 Oct 2026, 14:17 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.