Advisoriesby IbisArista NetworksCVE-2026-73447
Arista Networks EOS: code execution
Fix: upgrade to 4.31.0F or later (3 fixed versions below)
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 versions
| Package | Affected | Fixed in |
|---|---|---|
| EOS Product | >= 4.30.2F, < 4.31.0F | 4.31.0F |
| >= 4.31.0F, < 4.32.0F | 4.32.0F | |
| >= 4.32.0F, < 4.33.0F | 4.33.0F | |
| >= 4.33.0F, <= 4.33.8M | No fix yet |
Details and references
- CVSS 4.0
- CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-78