CVE-2025-52890
Incus vulnerable to antispoofing nftables firewall rule bypass on bridge networks with ACLs
- State
- Published
- Severity
- 8.1 High
- Published
- Jun 25, 2025
- Updated
- Jun 25, 2025
- Reserved
- Jun 20, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.1 High | CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H | GitHub_M |
Weaknesses
- CWE-863 Incorrect Authorization
Affected Products
| Product | Versions |
|---|---|
incuslxc |
|
References
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