[USN-8046-1] FRR vulnerabilities

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Ubuntu Security Notice USN-8046-1
February 17, 2026

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

- Ubuntu 25.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

Several security issues were fixed in FRR.

Software Description:
- 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.

Update instructions:

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

Ubuntu 25.10
frr 10.4.1-3ubuntu1.1

Ubuntu 24.04 LTS
frr 8.4.4-1.1ubuntu6.5

Ubuntu 22.04 LTS
frr 8.1-1ubuntu1.14

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

References:
https://ubuntu.com/security/notices/USN-8046-1
CVE-2025-61099, CVE-2025-61100, CVE-2025-61101, CVE-2025-61102,
CVE-2025-61103, CVE-2025-61104, CVE-2025-61105, CVE-2025-61106,
CVE-2025-61107

Package Information:
https://launchpad.net/ubuntu/+source/frr/10.4.1-3ubuntu1.1
https://launchpad.net/ubuntu/+source/frr/8.4.4-1.1ubuntu6.5
https://launchpad.net/ubuntu/+source/frr/8.1-1ubuntu1.14