CVE-2026-25804 | THREATINT

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.

PUBLISHED Reserved 2026-02-05 | Published 2026-02-06 | Updated 2026-02-09 | Assigner GitHub_M

HIGH: 8.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U

Problem types

CWE-287: Improper Authentication

CWE-770: Allocation of Resources Without Limits or Throttling

Product status

< 2.3.2

affected

>= 2.4.0, < 2.4.3

affected

References

github.com/...antrea/security/advisories/GHSA-86x4-wp9f-wrr9

github.com/antrea-io/antrea/pull/7496

github.com/...ommit/86c4b6010f3be536866f339b632621c23d7186fa

cve.org (CVE-2026-25804)

nvd.nist.gov (CVE-2026-25804)

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