CVE-2026-84409

Overview

The device’s update mechanism retrieves metadata for software updates over an unencrypted HTTP connection and stores portions of that metadata for later use. A management interface subsequently returns this stored value in a JSON response, and the web interface responsible for displaying update information inserts that value directly into the page as HTML. This behavior allows attacker‑controlled metadata to be interpreted as script content. In addition, the same authenticated origin provides an interface capable of executing system‑level commands with root privileges. An attacker able to influence update metadata could exploit these conditions to execute arbitrary code within the administrative context of the device.

G520 Series

This CVE is addressed by firmware release v2.6.0.7R6 published on September 18, 2026.

Recommended Actions

• Upgrade to firmware version v2.6.0.7R6 or later.
  • Download the latest firmware and release notes

Support

For technical assistance or questions regarding this advisory, please contact [email protected].