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CVE-2024-6858

Published: Jun 4, 2026Updated: Jun 5, 2026 Sources: CVE List NVDCWE-1287
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.1%
Top 96.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-1287

Affected Products

EOSArista Networks
On-prem
Networking Infrastructure / router-switch
arista networkscommercialUSNetworking Infrastructureaka arista networks

Exploitability

Official Patch Available
Workaround Available

References

https://www.arista.com/en/support/advisories-notices/security-advisory/19917-security-advisory-0103
arista.com

Timeline

Published
Jun 4, 2026
Last Updated
Jun 5, 2026

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