USN-8046-1: FRR vulnerabilities

Publication date

17 February 2026

Overview

Several security issues were fixed in FRR.


Packages

  • frr - FRRouting suite of internet protocols

Details

It was discovered that FRR incorrectly handled certain malformed OSPF and
update packets. A remote attacker could possibly use these issues to cause
FRR to crash, resulting in a denial of service.

It was discovered that FRR incorrectly handled certain malformed OSPF and
update packets. A remote attacker could possibly use these issues to cause
FRR to crash, resulting in a denial of service.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
25.10 questing frr –  10.4.1-3ubuntu1.1
24.04 LTS noble frr –  8.4.4-1.1ubuntu6.5
22.04 LTS jammy frr –  8.1-1ubuntu1.14

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