CVE-2026-25804 json
Antrea has invalid enforcement order for network policy rules caused by integer overflow
published 2026-02-06 9 mo ago modified 2026-06-17 4 mo ago also GHSA-86x4-wp9f-wrr9 , GO-2026-4461 , EUVD-2026-6936
- cvss
- 9.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go antrea.io/antrea 2.3.2, 2.4.3
- linuxfoundation antrea 2.3.2, 2.4.3
- govulncheck-vulndb openSUSE Leap 15.6 0.0.20260226T182644-150000.1.149.1
suse advisories SUSE-SU-2026:0757-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 8 mo ago
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.0 | CVSS: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 |
| CNA | 4.0 | 8.0 | CVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | antrea.io/antrea | <2.3.2 >=2.4.0, <2.4.3 all versions |
2.3.2 2.4.3 |
Affected products
- antrea-io antrea
Classification
References
-
github.com
/antrea-io/antrea/pull/7496
web, issue-tracking, patch
-
github.com
/antrea-io/antrea/commit/86c4b6010f3be536866f339b632621c23d7186fa
web, patch
-
github.com
/antrea-io/antrea/security/advisories/GHSA-86x4-wp9f-wrr9
web, patch, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-25804
advisory
-
gist.github.com
/antoninbas/c429cc3e5bb8479ba7ff38fd6fde59d9
web
-
github.com
/antrea-io/antrea
package
-
github.com
/antrea-io/antrea/blob/main/docs/antrea-network-policy.md
web
Sources
- CVE List CVE-2026-25804
- GitHub Advisory GHSA-86x4-wp9f-wrr9
- NVD CVE-2026-25804
- OSV GO-2026-4461
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.