# CVE-2024-6858

## Summary

- **CVE ID:** CVE-2024-6858
- **Severity:** MEDIUM
- **CVSS Score:** 6.5 (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
- **CWE:** CWE-1287
- **Published:** Jun 4, 2026
- **Last Modified:** Jun 5, 2026

## Description

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.

## Affected Products

- Arista Networks — EOS (4.31.0)
- Arista Networks — EOS (4.30.0)
- Arista Networks — EOS (4.29.0)
- Arista Networks — EOS (4.28.10)

## References

- [CNA](https://www.arista.com/en/support/advisories-notices/security-advisory/19917-security-advisory-0103)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.14%
- **EPSS Percentile:** 3.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._