Critical severity10.0NVD Advisory· Published Sep 16, 2026· Updated Sep 17, 2026
CVE-2026-73456
CVE-2026-73456
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1Patches
Vulnerability mechanics
References
1News mentions
1- Arista EOS: 25 Vulnerabilities Disclosed, Including Critical Code Execution FlawsVypr Intelligence · Sep 16, 2026