CVE-2025-52889
Description
Incus is a system container and virtual machine manager. When using an ACL on a device connected to a bridge, Incus version 6.12 and 6.13 generates nftables rules for local services (DHCP, DNS...) that partially bypass security options `security.mac_filtering`, `security.ipv4_filtering` and `security.ipv6_filtering`. This can lead to DHCP pool exhaustion and opens the door for other attacks. A patch is available at commit 2516fb19ad8428454cb4edfe70c0a5f0dc1da214.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ if you've already worked around this in production โ publish your fix to the community-verified tier.
โ Propose a mitigation on Community โ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | forky | fixed | 0 |
| debian | sid | fixed | 0 |
| debian | trixie | fixed | 0 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/lxc/incus/v6 | <6.14.0 | 6.14.0 |
| Go | github.com/lxc/incus | | |
| Go | github.com/lxc/incus/v6 | >=6.12.0,<6.14.0 | 6.14.0 |
References
- https://github.com/lxc/incus/security/advisories/GHSA-9q7c-qmhm-jv86
- https://nvd.nist.gov/vuln/detail/CVE-2025-52889
- https://github.com/lxc/incus/commit/2516fb19ad8428454cb4edfe70c0a5f0dc1da214
- https://github.com/lxc/incus/commit/a7c33301738aede3c035063e973b1d885d9bac7c
- https://github.com/lxc/incus
- https://security-tracker.debian.org/tracker/CVE-2025-52889
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.