{"id":"CVE-2025-52890","state":"PUBLISHED","title":"Incus vulnerable to antispoofing nftables firewall rule bypass on bridge networks with ACLs","description":"Incus is a system container and virtual machine manager. When using an ACL on a device connected to a bridge, Incus versions 6.12 and 6.13generates nftables rules that partially bypass security options `security.mac_filtering`, `security.ipv4_filtering` and `security.ipv6_filtering`. This can lead to ARP spoofing on the bridge and to fully spoof another VM/container on the same bridge. Commit 254dfd2483ab8de39b47c2258b7f1cf0759231c8 contains a patch for the issue.","publishedAt":"2025-06-25T16:51:24.279Z","updatedAt":"2025-06-25T17:54:01.093Z","severity":{"score":8.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["lxc incus"],"affected":[{"vendor":"lxc","product":"incus","versions":[{"version":">= 6.12, <= 6.13","status":"affected"}]}],"references":["https://github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp","https://github.com/lxc/incus/commit/254dfd2483ab8de39b47c2258b7f1cf0759231c8"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:09:31.862Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/52xxx/CVE-2025-52890.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-52890","state":"PUBLISHED","datePublished":"2025-06-25T16:51:24.279Z","dateUpdated":"2025-06-25T17:54:01.093Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-06-20T17:42:25.709Z"},"containers":{"cna":{"title":"Incus vulnerable to antispoofing nftables firewall rule bypass on bridge networks with ACLs","descriptions":[{"lang":"en","value":"Incus is a system container and virtual machine manager. When using an ACL on a device connected to a bridge, Incus versions 6.12 and 6.13generates nftables rules that partially bypass security options `security.mac_filtering`, `security.ipv4_filtering` and `security.ipv6_filtering`. This can lead to ARP spoofing on the bridge and to fully spoof another VM/container on the same bridge. Commit 254dfd2483ab8de39b47c2258b7f1cf0759231c8 contains a patch for the issue."}],"affected":[{"vendor":"lxc","product":"incus","versions":[{"version":">= 6.12, <= 6.13","status":"affected"}]}],"references":[{"url":"https://github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp","name":"https://github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/lxc/incus/commit/254dfd2483ab8de39b47c2258b7f1cf0759231c8","name":"https://github.com/lxc/incus/commit/254dfd2483ab8de39b47c2258b7f1cf0759231c8","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-06-25T16:51:24.279Z"},"source":{"advisory":"GHSA-p7fw-vjjm-2rwp","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-06-25T17:53:58.542840Z","id":"CVE-2025-52890","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-06-25T17:54:01.093Z"}}]}}}