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CVE-2026-73447— Security Advisory 0162 - gNSI Certz/Bootz OS Command Injection via Crafted Rotate Request

Quick assessment

Affected
Arista Networks EOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 es

CVSS 9.1 · Critical
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I. Basic Information for CVE-2026-73447

Vulnerability Information

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Vulnerability Title
Security Advisory 0162 - gNSI Certz/Bootz OS Command Injection via Crafted Rotate Request
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Arista Networks EOS 4.30.2F ~ 4.31.0F -

II. Public POCs for CVE-2026-73447

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III. Intelligence Information for CVE-2026-73447

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Vendor Advisories for CVE-2026-73447 (1)

Same Patch Batch · Arista Networks · 2026-09-16 · 9 CVEs total

CVE-2026-73464 8.8 HIGH Security Advisory 0166
CVE-2026-73454 8.1 HIGH Security Advisory 0165
CVE-2026-86108 8.0 HIGH Security Advisory 0181
CVE-2026-73461 8.0 HIGH Security Advisory 0163
CVE-2026-73439 7.5 HIGH Security Advisory 0164
CVE-2026-2380 7.4 HIGH Security Advisory 0168
CVE-2026-73450 6.9 MEDIUM Security Advisory 0161
CVE-2026-86109 6.6 MEDIUM Security Advisory 0182

IV. Related Vulnerabilities

Same product: EOS
Same vendor: Arista Networks
Same weakness: CWE-78

V. Comments for CVE-2026-73447

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