CVE-2026-73444 | BDVDB-2026-373597 Detail

Description#

On affected platforms running Arista EOS with VRRPv2 IP Authentication Header (IP-AH) authentication configured, an unauthenticated attacker with access to the layer 2 network segment on which VRRP is running could bypass VRRP authentication and claim the virtual router master role, enabling the attacker to intercept, modify, or discard traffic that hosts on the segment send to the virtual gateway address.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-09-15Record published in the CVE List.
2. Version 22026-09-16Most recent update recorded in the CVE List.