CVE-2026-120977 | Arista EOS up to 4.36.2F 802.1X improper authorization

November 10, 2026 Yanac

A vulnerability marked as critical has been reported in Arista EOS up to 4.36.2F. This vulnerability affects unknown code of the component 802.1X. Performing a manipulation results in improper authorization.

This vulnerability was named CVE-2026-120977. The attack may be initiated remotely. There is no available exploit.

It is suggested to upgrade the affected component.VulDB Recent EntriesRead More