CVE-2026-73464

High

Description

On affected platforms running Arista EOS with gRPC Network Management Interface (gNMI) enabled, a specially crafted request could allow a malicious authenticated client with gRPC Network Management Interface (gNMI) access to execute arbitrary code with root privileges on the switch.

SeverityHigh

CVSS8.8

Exploit probability—

ProductEOS

PublishedSep 16, 2026

First seenSep 16, 2026

Weakness typeCWE-94Code injection

How to fix

Update

Arista Networks EOS4.30.0F, 4.31.0F, 4.32.0F, 4.33.0F or later

Vendor advisories

arista.com/en/support/advisories-notices/security-advisory/24722-security-advisory-0166

Affected products

Product	Affected versions	Fixed in
Arista Networks EOS	4.29.0F ≤ v < 4.30.0F, 4.30.0F ≤ v < 4.31.0F, 4.31.0F ≤ v < 4.32.0F, 4.32.0F ≤ v < 4.33.0F, 4.33.0F ≤ v ≤ 4.33.8M, 4.34.0F ≤ v ≤ 4.34.7M, 4.35.0F ≤ v ≤ 4.35.5M, 4.36.0F ≤ v ≤ 4.36.0.1F	4.30.0F, 4.31.0F, 4.32.0F, 4.33.0F

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