CVE-2026-75943

A brief (milliseconds to seconds) traffic leak may occur when an authenticated supplicant is removed, either via the clear dot1x host all CLI command or due to a supplicant timeout. During this window, the supplicant's traffic may pass without ACL enforcem

LOW
2.6
CVSS Score
Published: September 14, 2026 at 10:11 PM UTC
Updated: September 16, 2026 at 08:54 PM UTC
1 product affected across 1 vendorArista EOS

Using EOS by Arista Networks?

Get instant alerts when new vulnerabilities affect EOS - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
LOW2.6
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

A brief (milliseconds to seconds) traffic leak may occur when an authenticated supplicant is removed, either via the clear dot1x host all CLI command or due to a supplicant timeout. During this window, the supplicant's traffic may pass without ACL enforcement.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0.0.0 ≤ v ≤ 4.33.9M4.34.0 ≤ v ≤ 4.34.7.1M4.35.0 ≤ v ≤ 4.35.5M4.36.0 ≤ v ≤ 4.36.1F0.0.04.34.04.35.04.36.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2.6LOWArista
Attack Vector
ADJACENT_NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-459

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card