Critical 9.1Published Feb 6, 2026

CVE-2026-25804Antrea is a Kubernetes networking solution intended to be Kubernetes native.

Updated under an hour ago (2026-10-19 11:20 UTC)

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It affects linuxfoundation antrea. Add what you run to find out whether that includes you.

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Every CVE for linuxfoundation antrea

Exploited in the last 30 days

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.

CVSS: 9.1 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Weakness (CWE): CWE-287, CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

linuxfoundation antrea linuxfoundation:antrea	before 2.3.2; from 2.4.0 before 2.4.3	NVD

References

https://github.com/antrea-io/antrea/commit/86c4b6010f3be536866f339b632621c23d7186fapatch
https://github.com/antrea-io/antrea/pull/7496issue-tracking, patch
https://github.com/antrea-io/antrea/security/advisories/GHSA-86x4-wp9f-wrr9patch, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.