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CVE-2025-52889VulnerabilityPublished Updated

When using an ACL on a device connected to a bridge, Incus version 6.12 and 6.13 generates nftables rules for local

Affects incusSource GCVE Database

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Authoritative record:CVE-2025-52889· Low 3.4

Not known to be exploited · CVSS 3.4 Low.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 3.1 base score
3.4Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Jun 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 4 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10incuspkg:deb/ubuntu/incus?arch=source&distro=stonkingOther threatsAffected
  • =6.0.5-8
  • =7.0.1-5
Fixed in–
Ubuntu 25.10incuspkg:deb/ubuntu/incus?arch=source&distro=questingOther threatsAffected
  • =6.0.3-4
  • =6.0.4-2
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A patch is available for this vulnerability as indicated by the referenced commit. Users of Incus versions 6.12 and 6.13 should apply the patch to remediate the issue. No additional mitigation steps are specified or required beyond applying the official fix.

Description

Incus versions 6.12 and 6.13 have a vulnerability where using an ACL on a device connected to a bridge causes nftables rules for local services to partially bypass certain security filtering options. This can lead to DHCP pool exhaustion and potentially other attacks. A patch addressing this issue is available.

References

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