Detections
Analytics

CVE-2026-77191

low

Description

An authenticated supplicant on an adjacent network may bypass intended network authorization policy and send unrestricted traffic during a brief window (milliseconds to seconds) between the completion of the authentication phase and the full enforcement of its assigned ACL.

References

https://www.arista.com/en/support/advisories-notices/security-advisory/24706-security-advisory-0150

Details

Source: Mitre, NVD

Published: 2026-09-14

Updated: 2026-09-16

Risk Information

CVSS v2

Base Score: 1.4

Vector: CVSS2#AV:A/AC:H/Au:S/C:N/I:P/A:N

Severity: Low

CVSS v3

Base Score: 2.6

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

Severity: Low

CVSS v4

Base Score: 2.1

Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Severity: Low

EPSS

EPSS: 0.0014