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.

CVSS v3.1 Score

3.4

LOW

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L

Weakness Type (CWE)

CWE-770 CWE-770

References

Other References

https://github.com/lxc/incus/commit/2516fb19ad8428454cb4edfe70c0a5f0dc1da214 https://github.com/lxc/incus/commit/a7c33301738aede3c035063e973b1d885d9bac7c https://github.com/lxc/incus/security/advisories/GHSA-9q7c-qmhm-jv86 https://github.com/lxc/incus/security/advisories/GHSA-9q7c-qmhm-jv86

Frequently Asked Questions

What is CVE-2025-52889? +

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. It has a CVSS v3.1 base score of 3.4 (LOW).

How severe is CVE-2025-52889? +

CVE-2025-52889 has a CVSS v3.1 score of 3.4 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

How do I check if I'm vulnerable to CVE-2025-52889? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-39313

mcp-framework is a framework for building Model Context Protocol (MCP) servers. In versions 0.2.21 and below, the readRequestBody() function in …

CVE-2026-35469

spdystream is a Go library for multiplexing streams over SPDY connections. In versions 0.5.0 and below, the SPDY/3 frame parser …

CVE-2026-39803

Allocation of Resources Without Limits or Throttling vulnerability in mtrudel bandit allows unauthenticated remote denial of service via memory exhaustion. …

CVE-2026-39804

Allocation of Resources Without Limits or Throttling vulnerability in mtrudel bandit allows unauthenticated remote denial of service via memory exhaustion …

CVE-2026-32688

Allocation of Resources Without Limits or Throttling vulnerability in elixir-plug plug_cowboy allows unauthenticated remote denial of service via atom table …

CVE-2024-45484

An Allocation of Resources Without Limits or Throttling vulnerability in the operating system network configuration used in B&R APROL <4.4-00P5 …