CVE-2026-75943 LOW

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

Vendor Arista Networks
Product EOS
Weakness CWE-459
Published September 14, 2026
Last update September 15, 2026
View on NVD All CVEs

CVSS base score

2.6/10
Attack vector Adjacent
Attack complexity High
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

September 14, 2026 CVE published
September 15, 2026 Record updated