SB2025072257 - Authentication bypass in Arista EOS



SB2025072257 - Authentication bypass in Arista EOS

Published: July 22, 2025

Security Bulletin ID SB2025072257
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Authentication bypass using an alternate path or channel (CVE-ID: CVE-2025-6188)

The vulnerability allows a remote attacker to bypass authentication. 

The vulnerability exists missing authentication when handling UDP packets sent with source port 3503. A remote non-authenticated attacker can send specially crafted UDP packets and bypass authentication. 


Remediation

Install update from vendor's website.