CVE-2021-35033 HIGH

CVE-2021-35033

Vendor Zyxel
Product NBG6818 series firmware
Weakness CWE-260
Published November 23, 2021
Last update August 4, 2024

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

November 23, 2021 CVE published
August 4, 2024 Record updated