CVE-2026-73447 — CRITICAL (9.1)

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.

CVSS Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-78

References

https://www.arista.com/en/support/advisories-notices/security-advisory/24718-sec

FAQ

What is CVE-2026-73447?

CVE-2026-73447 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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 Inter...

How severe is CVE-2026-73447?

CVE-2026-73447 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-73447?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.