Arista NetworksCVE-2026-73447
Arista Networks EOS: code execution
Critical9.4CVE-2026-73447 · Published Sep 16, 2026 · updated Sep 17, 2026
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
More Arista Networks advisories
All Arista Networks| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 16 | Arista Networks EOS: remote code execution | Critical9.2 | No fix yet |
| Sep 16 | Arista Networks EOS: secrets in logs | Medium6.0 | No fix yet |
| Sep 16 | Arista Networks EOS: out-of-bounds read | High7.1 | No fix yet |
| Sep 16 | Arista Networks EOS: secrets in logs | Low2.1 | No fix yet |
| Sep 16 | Arista Networks EOS: denial of service | Medium5.3 | No fix yet |
| Sep 16 | Arista Networks VeloCloud Edge: missing authentication | High8.7 | 5.2.0.0+3 more |