CVE-2024-6858CWE-1287

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.

Medium · published June 4, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
3.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00143 · 3.3th percentile
Weakness
CWE-1287 · Improper Validation of Specified Type of Input
Published
2026-06-04T21:51Z
EPSS history
Timeline
  • 04 JUN 21:51Z
    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.
    cvelistv5