CVE-2026-73447

PUBLISHED
Published: 16 Sept 2026, 06:04
Last modified:16 Sept 2026, 06:04

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.4 CRITICAL
v4.0 (cve.org)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

16 Sept 2026, 06:04
Published
Vulnerability first disclosed

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.

CVSS Metrics

  • v4.0•CRITICAL•Score: 9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  • v3.1•CRITICAL•Score: 9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Techniques & Countermeasures

  • CWE-78•Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

    The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Affected Systems

  • arista networks•eos

    ≥ 4.30.2F, < 4.31.0F | ≥ 4.31.0F, < 4.32.0F | ≥ 4.32.0F, < 4.33.0F | ≥ 4.33.0F, ≤ 4.33.8M | ≥ 4.34.0F, ≤ 4.34.7M | ≥ 4.35.0F, ≤ 4.35.5M | ≥ 4.36.0F, ≤ 4.36.0.1F

References (1)