Advisoriesby IbisArista NetworksCVE-2026-73454
Arista Networks EOS: command injection
Fix: upgrade to 4.31.0F or later (3 fixed versions below)
On affected platforms running Arista EOS with gRPC Network Security Interface (gNSI) Credentialz configured, a specially crafted request can cause unintended modifications to the target account's properties. This may result in the account being assigned elevated privileges or access beyond what an administrator intended.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| EOS Product | >= 4.30.0F, < 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:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/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-77