CVE-2022-37035: Frrouting

High severity, CVSS 8.1. EPSS: 2.6% chance of exploitation in the next 30 days.

An issue was discovered in bgpd in FRRouting (FRR) 8.3. In bgp_notify_send_with_data() and bgp_process_packet() in bgp_packet.c, there is a possible use-after-free due to a race condition. This could lead to Remote Code Execution or Information Disclosure by sending crafted BGP packets. User interaction is not needed for exploitation.

Affected products

• Frrouting Frrouting: version 8.3 only

Published 2022-08-02. Last modified 2026-06-17.