CVE-2026-73442: Arista Networks Eos

Low severity, CVSS 3.0. EPSS: 0.2% chance of exploitation in the next 30 days.

On affected platforms running Arista EOS with VRRP enabled, the peer device VRRP authentication credentials are logged in cleartext on the switch, allowing an authenticated user with sufficient privileges to view agent trace logs (or a system receiving forwarded log output) to obtain the peer device VRRP authentication credentials without having access to the network segment on which VRRP is running.

Affected products

• Arista Networks Eos: from 4.36.0, up to and including 4.36.1F; from 4.35.0, up to and including 4.35.5M; from 4.34.0, up to and including 4.34.7M; from 4.33.0, up to and including 4.33.9M

Published 2026-09-16. Last modified 2026-09-17.