==========================================================================
Ubuntu Security Notice USN-8175-1
April 15, 2026

frr vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

FRR could allow unintended access to network services.

Software Description:
- frr: FRRouting suite of internet protocols

Details:

It was discovered that FRR did not correctly handle certain network
requests. A remote attacker could possibly use this issue to gain
unauthorized access to resources.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 25.10
  frr                             10.4.1-3ubuntu1.2

Ubuntu 24.04 LTS
  frr                             8.4.4-1.1ubuntu6.6

Ubuntu 22.04 LTS
  frr                             8.1-1ubuntu1.15

Ubuntu 20.04 LTS
  frr                             7.2.1-1ubuntu0.2+esm4
                                  Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-8175-1
  CVE-2026-5107

Package Information:
  https://launchpad.net/ubuntu/+source/frr/10.4.1-3ubuntu1.2
  https://launchpad.net/ubuntu/+source/frr/8.4.4-1.1ubuntu6.6
  https://launchpad.net/ubuntu/+source/frr/8.1-1ubuntu1.15