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 CVSS 3.1 · 3.8 Low EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

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


Vendor Workaround

There is no known mitigation for the issue. The recommended resolution is to upgrade to a remediated software version at your earliest convenience and afterwards rotate the custom global encryption-key.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-25755 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.
History
Type Values Removed Values Added
First Time appeared Arista
Arista eos
Vendors & Products Arista
Arista eos
Type Values Removed Values Added
Description 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.
Title 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
Weaknesses CWE-532
References
Metrics cvssV3_1

{'score': 3.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Arista
Published
Updated
Oct 12, 2026, 9:31 AM
Reserved
Apr 8, 2025, 9:38 PM
Status
Deferred
Published
Aug 25, 2025, 8:15 PM
Modified
Oct 12, 2026, 10:16 AM