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.
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
9th
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.
| CWE | CWE-287 |
| Vendor | arista networks |
| Product | eos |
| Published | Jun 4, 2026 |
| Last Updated | Jun 5, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected Versions
Arista Networks / EOS
4.31.0 ≤ 4.31.0F 4.30.0 ≤ 4.30.4M 4.29.0 ≤ 4.29.6M 4.28.0 ≤ 4.28.8M 4.27.0 ≤ 4.27.11M 4.26.0 ≤ 4.26.11M 4.25.0 ≤ 4.25.11M 4.24.0 ≤ 4.24.11M