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…

PriorityP411low2.6CVSS 3.1

AVAACHPRLUINSUCNILAN

EPSS

0.13%

2.9th percentile

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

4 ranges

Vendor	Product	Version range	Fixed in
arista_networks	eos	0.0.0 – 4.33.9M	—
arista_networks	eos	4.34.0 – 4.34.7.1M	—
arista_networks	eos	4.35.0 – 4.35.5M	—
arista_networks	eos	4.36.0 – 4.36.1F	—

CVSS provenance

nvdv3.12.6LOWCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

nvdv4.02.1LOWCVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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