CVE-2025-3456: Arista Networks Eos

Low severity, CVSS 3.8. EPSS: 0.1% chance of exploitation in the next 30 days.

On affected platforms running Arista EOS, the global common encryption key configuration may be logged in clear text, in local or remote accounting logs. Knowledge of both the encryption key and protocol specific encrypted secrets from the device running-config could then be used to obtain protocol specific passwords in cases where symmetric passwords are required between devices with neighbor protocol relationships.

Affected products

• Arista Networks Eos: version 4.34.0F only; from 4.33.0, up to and including 4.33.3F; from 4.32.0, up to and including 4.32.5M; from 4.31.0, up to and including 4.31.7M; from 4.30.0, up to and including 4.30.10M; from 4.29.0, up to and including 4.29.10M

Published 2025-08-25. Last modified 2026-06-17.