CVE-2024-27890

CRITICAL

Arista EOS OpenConfig without SSL Profiles - gNMI Set Authentication Bypass

Title source: manual

Description

Affected platforms running Arista EOS with OpenConfig configured, a gNMI Set request can be run when it should have been rejected. This can result in unexpected configuration being applied to the switch.

References (1)

Core 1

Core References

https://www.arista.com/en/support/advisories-notices/security-advisory/19862-security-advisory-0099

Scores

CVSS v3 9.6

EPSS 0.0443

EPSS Percentile 90.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-306

Status published

Products (6)

Arista Networks/EOS 4.24.0 - 4.24.11M

Arista Networks/EOS 4.25.0 - 4.25.10M

Arista Networks/EOS 4.26.0 - 4.26.9M

Arista Networks/EOS 4.27.0 - 4.27.8M

Arista Networks/EOS 4.28.0 - 4.28.10M

Arista Networks/EOS 4.29.0 - 4.29.7M

Published Jun 04, 2026

Tracked Since Jun 05, 2026