OCTOBER 13, 2026
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Case File

CVE-2026-73439

HIGH · CVSS 7.5 EPSS 0.36%

Source: NVD + CISA KEV + EPSS · Published 2026-09-16 · Last synced 2026-10-13

CyberRota Analysis

AI-Generated

Arista EOS systems with OpenConfig and a gNMI server are vulnerable when both group and user rules for the same gNSI Pathz policy are configured, potentially leading to unauthorized access. This flaw allows authenticated users to bypass intended restrictions, enabling them to read or write to gNMI paths that should be protected. Organizations using Arista EOS with these configurations should prioritize remediation to mitigate the risk of unauthorized data manipulation.

CVE
CVE-2026-73439
Severity
HIGH
CVSS
7.5
EPSS
0.36%

Original NVD Description

On affected platforms running Arista EOS, if OpenConfig is configured and running a gNMI server on the system, and if gNSI Pathz is configured and a gNSI Pathz policy is present on the system, then gNMI may fail to correctly enforce the rules in this policy if both a group rule and a user rule for the same path is present in the policy. Under certain conditions, this can lead to an authenticated user gaining unauthorized permission to read or write gNMI paths that the Pathz policy is intended to restrict.