CVE-2026-121289 | Arista EOS up to 4.36.2F BGP input validation

November 10, 2026 Yanac

A vulnerability classified as very critical was found in Arista EOS up to 4.32.x/4.33.10M/4.34.8M/4.35.6M/4.36.2F. This vulnerability affects unknown code of the component BGP. Executing a manipulation can lead to improper input validation.

This vulnerability is tracked as CVE-2026-121289. The attack can be launched remotely. No exploit exists.

Upgrading the affected component is advised.VulDB Recent EntriesRead More