CVE-2023-5502 HIGH

CVE-2023-5502: On affected platforms running Arista EOS with 802.1x authentication configured on the access/trunk ports, a malicious supplicant may bypass authentication.

Vendor Arista Networks
Product EOS
Weakness CWE-287 · Improper authentication
Published June 4, 2026
Last update June 5, 2026
View on NVD All CVEs

CVSS base score

8.2/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

On affected platforms running Arista EOS with 802.1x authentication configured on the access/trunk ports, and routing enabled on the access VLAN of the ports, a malicious supplicant may be able to bypass the requirement to perform 802.1x authentication.

Key dates

02Disclosure timeline

June 4, 2026 CVE published
June 5, 2026 Record updated