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.
Advisories
Source ID Title
EUVD EUVD EUVD-2025-19114 Incus creates nftables rules that partially bypass security options
Github GHSA Github GHSA GHSA-p7fw-vjjm-2rwp Incus creates nftables rules that partially bypass security options
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00029}

epss

{'score': 0.00033}


Wed, 25 Jun 2025 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 25 Jun 2025 17:00:00 +0000

Type Values Removed Values Added
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.
Title Incus vulnerable to antispoofing nftables firewall rule bypass on bridge networks with ACLs
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-06-25T17:54:01.093Z

Reserved: 2025-06-20T17:42:25.709Z

Link: CVE-2025-52890

cve-icon Vulnrichment

Updated: 2025-06-25T17:53:53.867Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-06-25T17:15:39.370

Modified: 2025-06-26T18:57:43.670

Link: CVE-2025-52890

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.