CVE-2026-77191

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.

CVSS v3 2.6 LOW

2.6^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.2 / Impact : 1.4

Attack Vector ADJACENT_NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

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

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-14 23:18

Updated : 2026-09-15 14:17

NVD link : CVE-2026-77191

Mitre link : CVE-2026-77191

CVE.ORG link : CVE-2026-77191

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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