How severe is CVE-2023-5502?

CVE-2023-5502 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-5502 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-5502?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-5502 have an EU (EUVD) identifier?

Yes. CVE-2023-5502 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-60580.

When was CVE-2023-5502 published?

CVE-2023-5502 was published on 2026-06-04 and last updated on 2026-06-17.

CVE-2023-5502

CVE-2023-5502 is a medium-severity vulnerability with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v4: 8.2
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-60580
Weakness: CWE-287
Published: 2026-06-04
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-5502?: 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.
How severe is CVE-2023-5502?: CVE-2023-5502 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-5502 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-5502?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-5502 have an EU (EUVD) identifier?: Yes. CVE-2023-5502 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-60580.
When was CVE-2023-5502 published?: CVE-2023-5502 was published on 2026-06-04 and last updated on 2026-06-17.

References

https://www.arista.com/en/support/advisories-notices/security-advisory/19462-security-advisory-0096

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