CVE-2026-77191: CWE-862 Missing Authorization in Arista Networks EOS
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.
CVE-2026-77191: CWE-862 Missing Authorization in Arista Networks EOS
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.
CVSS v3.1
Score 2.6low
Affected software
Arista Networks
EOS
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Arista
- Date Reserved
- 2026-08-20T16:41:22.053Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa875f055bf5e2cf5ba9996
Added to database: 09/14/2026, 22:32:16 UTC
Last updated: 09/14/2026, 22:32:16 UTC
Views: 1
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