CVE-2026-25804CRITICAL 9.1EPSS p35.2%

CVE-2026-25804CVE-2026-25804

Description

Antrea is a Kubernetes networking solution intended to be Kubernetes native. Prior to versions 2.3.2 and 2.4.3, Antrea's network policy priority assignment system has a uint16 arithmetic overflow bug that causes incorrect OpenFlow priority calculations when handling a large numbers of policies with various priority values. This results in potentially incorrect traffic enforcement. This issue has been patched in versions 2.4.3.

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS0.44% probability of exploitation · percentile 35.2% · 2026-06-19T12:03:05Z
Published2026-02-06
Last modified2026-02-28

Underlying weaknesses· 2

CWE-287CWE-770

References

  1. https://github.com/antrea-io/antrea/commit/86c4b6010f3be536866f339b632621c23d7186fa
  2. https://github.com/antrea-io/antrea/pull/7496
  3. https://github.com/antrea-io/antrea/security/advisories/GHSA-86x4-wp9f-wrr9

2

TypeTargetConfidenceTier
WeaknessImproper Authenticationcwe-2870%live
WeaknessAllocation of Resources Without Limits or Throttlingcwe-7700%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.