What’s Vulnerable › Vulnerabilities
CVE-2026-73447: Security Advisory 0162 - gNSI Certz/Bootz OS Command Injection via Crafted Rotate Request
- Severity: critical (CVSS 9.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-16 · updated 2026-09-17
- Weakness: CWE-78
Description
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.
Affected products
- Arista Networks EOS: from 4.30.2F before 4.31.0F; from 4.31.0F before 4.32.0F; from 4.32.0F before 4.33.0F; from 4.33.0F through 4.33.8M; from 4.34.0F through 4.34.7M; from 4.35.0F through 4.35.5M — fixed in 4.31.0F, 4.32.0F, 4.33.0F
How to fix
Upgrade to a fixed version: Arista Networks EOS 4.31.0F, 4.32.0F, 4.33.0F. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-73447 or the next vulnerability affects your stack