CVE-2025-3456: 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-c

Published Aug 25, 2025

Updated

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 Software

1 affected component

Arista EOS

Remediation

Information

The recommended resolution is to upgrade to a remediated software version at your earliest convenience. Arista recommends customers move to the latest version of each release that contains all the fixes listed below. For more information about upgrading see EOS User Manual: Upgrades and Downgrades https://www.arista.com/en/um-eos/eos-upgrades-and-downgrades CVE-2025-3456 has been fixed in the following releases: * 4.34.1F and later releases in the 4.34.x train * 4.33.4M and later releases in the 4.33.x train * 4.32.6M and later releases in the 4.32.x train * 4.31.8M and later releases in the 4.31.x train

Event History

Aug 25, 2025

CVE Published

via MITRE·08:02 PM

Data Sourced

via MITRE·08:02 PM

RemedyDescriptionSeverityWeakness

Data Sourced

via NVD·08:15 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What is the severity of CVE-2025-3456?

CVE-2025-3456 is classified as a high-severity vulnerability due to the exposure of sensitive encryption keys.

How do I fix CVE-2025-3456?

To remediate CVE-2025-3456, update to the latest version of Arista EOS where the logging of the global common encryption key is addressed.

Which versions of Arista EOS are affected by CVE-2025-3456?

CVE-2025-3456 impacts all versions of Arista EOS that log the global common encryption key in clear text.

What are the risks associated with CVE-2025-3456?

The risks include potential unauthorized access to encrypted secrets if the logged encryption keys are obtained.

Is CVE-2025-3456 being actively exploited?

As of now, there are no public reports confirming active exploitation of CVE-2025-3456.