Ubuntu Security Notices USN-8175-1 USN-8175-1: FRR vulnerability Publication date 15 April 2026 Overview FRR could allow unintended access to network services. Releases 25.10 24.04 LTS 22.04 LTS 20.04 LTS Open side navigation Close side navigation Packages Details Update instructions References Packages 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. 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 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 – 10.4.1-3ubuntu1.2 24.04 LTS noble frr – 8.4.4-1.1ubuntu6.6 22.04 LTS jammy frr – 8.1-1ubuntu1.15 20.04 LTS focal frr – 7.2.1-1ubuntu0.2+esm4 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. Get Ubuntu Pro References CVE-2026-5107 CVE-2026-5107