CVE-2026-73456
CRITICAL
NVD
CVSS Score
10
Severity
CRITICAL
Published
Sep 16, 2026
Vendor
unknown
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.