VULNERABILITY INTELLIGENCE

CVE-2021-35033

CVSS score7.8 HIGH

EPSS probability0.41%

CISA KEVNot currently listed

Published2021-11-23

Last modified2026-06-17

Description

A vulnerability in specific versions of Zyxel NBG6818, NBG7815, WSQ20, WSQ50, WSQ60, and WSR30 firmware with pre-configured password management could allow an attacker to obtain root access of the device, if the local attacker dismantles the device and uses a USB-to-UART cable to connect the device, or if the remote assistance feature had been enabled by an authenticated user.