CVE-2026-73467: Arista Networks Eos

Medium severity, CVSS 6.3. EPSS: 0.1% chance of exploitation in the next 30 days.

On affected platforms running Arista EOS, under certain circumstances plaintext shared secrets for configured Terminal Access Controller Access-Control System Plus (TACACS+) servers

Affected products

• Arista Networks Eos: from 4.36.0, up to and including 4.36.1F; from 4.35.0, up to and including 4.35.4M; from 4.34.0, up to and including 4.34.7M; from 0.0.0, up to and including 4.33.9M; up to and including 4.32.0; up to and including 4.31.0

Published 2026-09-15. Last modified 2026-09-16.