CVE-2025-52889
Incus vulnerable to DoS through antispoofing nftables firewall rule bypass on bridge networks with ACLs
- State
- Published
- Severity
- 3.4 Low
- 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 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 3.4 Low | CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L | GitHub_M |
Weaknesses
- CWE-770 Allocation of Resources Without Limits or Throttling
Affected Products
| Product | Versions |
|---|---|
incuslxc |
|
References
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