What is CVE-2021-35033?

CVE-2021-35033 is a high-severity vulnerability in Zyxel Nbg6818 Series Firmware, classified under CWE-260. CVSS score: 7.8/10. Published 2021-11-23.

How severe is CVE-2021-35033?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Zyxel Nbg6818 Series Firmware

CVE-2021-35033

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 t…

EPSS: 0.001 (29.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Zyxel Nbg6818 Series Firmware — versions 1.00(ABSC.0)C0 through 1.00(ABSC.4)C0
Zyxel Nbg7815 Series Firmware — versions 1.00(ABSK.0)C0 through 1.00(ABSK.6)C0
Zyxel Wsq20 Series Firmware — versions 1.00(ABOF.0)C0 through 1.00(ABOF.10)C0
Zyxel Wsq50 Series Firmware — versions 1.00(ABKJ.0)C0 through 2.20(ABKJ.6)C0
Zyxel Wsq60 Series Firmware — versions 1.00(ABND.0)C0 through 2.20(ABND.7)C0
Zyxel Wsr30 Series Firmware — versions 1.00(ABMY.0)C0 through 1.00(ABMY.11)C0

Weakness classification (CWE)

CWE-260

References

www.zyxel.com/support/Zyxel_security_advisory_for_pre-configured_password_manag… (x_refsource_CONFIRM)
www.tenable.com/security/research/tra-2022-06 (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-35033?: CVE-2021-35033 is a high-severity vulnerability in Zyxel Nbg6818 Series Firmware, classified under CWE-260. CVSS score: 7.8/10. Published 2021-11-23.
How severe is CVE-2021-35033?: High severity. CVSS v3 base score is 7.8 out of 10.