---
title: "CVE-2026-73464: Arista EOS - Remote Code Execution"
description: "Arista EOS with gRPC Network Management Interface (gNMI) enabled contains a remote code execution caused by specially crafted requests, letting authenticated gNMI clients execute arbitrary code with root privileges on the switch, exploit requires authenticated gNMI access."
url: https://panop.io/threat-heartbeat/CVE-2026-73464/
---

# CVE-2026-73464 Arista EOS - Remote Code Execution

Arista EOS with gRPC Network Management Interface (gNMI) enabled contains a remote code execution caused by specially crafted requests, letting authenticated gNMI clients execute arbitrary code with root privileges on the switch, exploit requires authenticated gNMI access.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.64% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-73464)

## Details

Type

Remote Code Execution

Impact

Remote Code Execution, Privilege Escalation

CVSS vector

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

Published

16 September 2026

Updated

15 October 2026

Weakness

[CWE-94](https://cwe.mitre.org/data/definitions/94.html)

## Vendor fix

Update to the latest version with gNMI security patches.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-73464](https://nvd.nist.gov/vuln/detail/CVE-2026-73464)
- [https://www.arista.com/en/support/advisories-notices/security-advisory/24722-security-advisory-0166](https://www.arista.com/en/support/advisories-notices/security-advisory/24722-security-advisory-0166)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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