CVE-2021-35033

HighCVSS 7.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-260 CWE-287

Affected software

No affected versions have been published.

Timeline

Published: Nov 23, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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