What is CVE-2024-6858?

CVE-2024-6858 is a medium-severity vulnerability in Arista Networks Eos, classified under CWE-1287. CVSS score: 6.5/10. Published 2026-06-04.

How severe is CVE-2024-6858?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Arista Networks Eos

CVE-2024-6858

In Arista’s EOS when in 802.1X mode, multi-auth unauthenticated hosts might be allowed access to a switch port if there exists an EAPOL capable device in the fallback VLAN.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Arista Networks Eos — versions 4.31.0, 4.30.0, 4.29.0

Weakness classification (CWE)

CWE-1287

References

psirt@arista.com

Frequently asked questions

What is CVE-2024-6858?: CVE-2024-6858 is a medium-severity vulnerability in Arista Networks Eos, classified under CWE-1287. CVSS score: 6.5/10. Published 2026-06-04.
How severe is CVE-2024-6858?: Medium severity. CVSS v3 base score is 6.5 out of 10.