CVE-2026-73456

CRITICAL10.0

Published 2026-09-16 · Source psirt@arista.com

Description

Under certain circumstances on affected platforms running Arista EOS with gRPC Network Packet Sampling Interface (gNPSI) enabled, an unauthenticated gNPSI client can craft a malicious request to allow arbitrary code execution, granting an attacker full administrative control over the compromised switch.

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

CWE-94

References

https://www.arista.com/en/support/advisories-notices/security-advisory/24714-security-advisory-0158

View on NVD

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