CVE-2021-35033

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 23-11-2021 11:15

Last modified: - 05-04-2022 10:57

Total changes: - 4

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.

Common Vulnerability Scoring System (CVSS)

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

Low

Attack complexity

Local

Attack vector

High

Availability

High

Confidentiality

High

Integrity

Low

Privileges required

Unchanged

Scope

None

User interaction

7.8

Base score

1.8

5.9

Exploitability score

Impact score

Verification logic

AND

vendor=zyxel AND product=nbg6818_firmware AND versionEndExcluding=1.00\(absc.5\)c0

vendor=zyxel AND product=nbg6818 AND version=-

AND

vendor=zyxel AND product=nbg7815_firmware AND versionEndExcluding=1.00\(absk.7\)c0

vendor=zyxel AND product=nbg7815 AND version=-

AND

vendor=zyxel AND product=wsq20_firmware AND versionEndExcluding=1.00\(abof.11\)c0

vendor=zyxel AND product=wsq20 AND version=-

AND

vendor=zyxel AND product=wsq50_firmware AND versionEndExcluding=2.20\(abkj.7\)c0

vendor=zyxel AND product=wsq50 AND version=-

AND

vendor=zyxel AND product=wsq60_firmware AND versionEndExcluding=2.20\(abnd.8\)c0

vendor=zyxel AND product=wsq60 AND version=-

AND

vendor=zyxel AND product=wsr30_firmware AND versionEndExcluding=1.00\(abmy.12\)c0

vendor=zyxel AND product=wsr30 AND version=-

Reference

Keywords

CVE-2021-35033

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-35033

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures