Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/lxc/incus/commit/254dfd2483ab8de39b47c2258b7f1cf0759231c8
- https://github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp
- https://github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp
FAQ
What is CVE-2025-52890?
CVE-2025-52890 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 option...
How severe is CVE-2025-52890?
CVE-2025-52890 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-52890?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.