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Arista EOS gRPC Network Security Interface Certz Service Lets a Privileged Authenticated User Execute Arbitrary Commands with Root Privileges, Leading to Full Device Compromise

Last refreshed2026-09-28

Status: NEW  |  Advisory ID: CVE-2026-73447

Key Details

CVECVE-2026-73447
CVSS Score / Version9.1 (Critical) / CVSS v3.1
Updated2026-09-17
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS Proseattack vector is network; attack complexity is low; privileges required is high; user interaction is none; scope is changed; confidentiality impact is high; integrity impact is high; availability impact is high.
Classified asCWE-78 (Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'))

What to Know

A privileged attacker can exploit certain operation to execute arbitrary commands with root privileges, leading to full device compromise. An authenticated user can exploit gRPC Network Security Interface (gNSI) Certz service on Arista EOS-based products to escalate privileges and execute arbitrary OS commands via a crafted Certz Rotate request. The Bootz service is also affected. (NVD)

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-73447
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-73447