Authentication bypass using an alternate path or channel in Arista Extensible Operating System (EOS) - CVE-2025-6188
Published: July 22, 2025
Vulnerability identifier: #VU113161
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-6188
CWE-ID: CWE-288
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Arista Extensible Operating System (EOS)
How to mitigate CVE-2025-6188
Install updates from vendor's website.
Arista Extensible Operating System (EOS) - addressed in versions 4.30.10, 4.31.7, 4.32.5, 4.33.2