CVSS 4.0
8.0 highCVSS: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:UCVE-2026-25804
High (8.0) in linuxfoundation antrea. EPSS 0.5% chance of exploitation in the next 30 days. Fixed in antrea.io/antrea 2.3.2, 2.4.3.
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.
Severity
CVSS 3.1
9.1 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-287, CWE-770
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linuxfoundation:antrea
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-86x4-wp9f-wrr9 | Go | antrea.io/antrea | <2.3.2 | 2.3.2 |
| GHSA-86x4-wp9f-wrr9 | Go | antrea.io/antrea | >=2.4.0 <2.4.3 | 2.4.3 |
| GO-2026-4461 | Go | antrea.io/antrea | all versions | no fix published |