{"id":"CVE-2026-25804","state":"PUBLISHED","title":"Antrea has invalid enforcement order for network policy rules caused by integer overflow","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.","publishedAt":"2026-02-06T22:58:35.041Z","updatedAt":"2026-02-09T15:25:44.301Z","severity":{"score":8,"label":"High","version":"4.0","vector":"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","source":"GitHub_M"},"assigner":"GitHub_M","products":["antrea-io antrea"],"affected":[{"vendor":"antrea-io","product":"antrea","versions":[{"version":"< 2.3.2","status":"affected"},{"version":">= 2.4.0, < 2.4.3","status":"affected"}]}],"references":["https://github.com/antrea-io/antrea/security/advisories/GHSA-86x4-wp9f-wrr9","https://github.com/antrea-io/antrea/pull/7496","https://github.com/antrea-io/antrea/commit/86c4b6010f3be536866f339b632621c23d7186fa"],"weaknesses":["CWE-287","CWE-770"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/25xxx/CVE-2026-25804.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-25804","state":"PUBLISHED","datePublished":"2026-02-06T22:58:35.041Z","dateUpdated":"2026-02-09T15:25:44.301Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-02-05T19:58:01.641Z"},"containers":{"cna":{"title":"Antrea has invalid enforcement order for network policy rules caused by integer overflow","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"antrea-io","product":"antrea","versions":[{"version":"< 2.3.2","status":"affected"},{"version":">= 2.4.0, < 2.4.3","status":"affected"}]}],"references":[{"url":"https://github.com/antrea-io/antrea/security/advisories/GHSA-86x4-wp9f-wrr9","name":"https://github.com/antrea-io/antrea/security/advisories/GHSA-86x4-wp9f-wrr9","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/antrea-io/antrea/pull/7496","name":"https://github.com/antrea-io/antrea/pull/7496","tags":["x_refsource_MISC"]},{"url":"https://github.com/antrea-io/antrea/commit/86c4b6010f3be536866f339b632621c23d7186fa","name":"https://github.com/antrea-io/antrea/commit/86c4b6010f3be536866f339b632621c23d7186fa","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8,"baseSeverity":"HIGH","vectorString":"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","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","lang":"en","description":"CWE-287: Improper Authentication","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-770","lang":"en","description":"CWE-770: Allocation of Resources Without Limits or Throttling","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-02-06T22:58:35.041Z"},"source":{"advisory":"GHSA-86x4-wp9f-wrr9","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-09T15:21:46.446442Z","id":"CVE-2026-25804","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-09T15:25:44.301Z"}}]}}}