
CVE-2025-52890 – Incus vulnerable to antispoofing nftables firewall rule bypass on bridge networks with ACLs
https://notcve.org/view.php?id=CVE-2025-52890
25 Jun 2025 — 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. • https://github.com/lxc/incus/commit/254dfd2483ab8de39b47c2258b7f1cf0759231c8 • CWE-863: Incorrect Authorization •

CVE-2025-52889 – Incus vulnerable to DoS through antispoofing nftables firewall rule bypass on bridge networks with ACLs
https://notcve.org/view.php?id=CVE-2025-52889
25 Jun 2025 — 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. • https://github.com/lxc/incus/commit/2516fb19ad8428454cb4edfe70c0a5f0dc1da214 • CWE-770: Allocation of Resources Without Limits or Throttling •