CVE-2021-4029

Description

A command injection vulnerability in the CGI program of the Zyxel ARMOR Z1/Z2 firmware could allow an attacker to execute arbitrary OS commands via a LAN interface.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.60%
Vendor Advisory zyxel.com
Affected: Zyxel ARMOR Z2 (NBG6817) firmware
Affected: Zyxel ARMOR Z1 (NBG6816) firmware
Published at:
Updated at:

References

Link Tags
https://www.zyxel.com/support/forgery-vulnerabilities-of-select-Armor-home-routers.shtml vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-4029?
CVE-2021-4029 has been scored as a high severity vulnerability.
How to fix CVE-2021-4029?
To fix CVE-2021-4029, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-4029 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-4029 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-4029?
CVE-2021-4029 affects Zyxel ARMOR Z2 (NBG6817) firmware, Zyxel ARMOR Z1 (NBG6816) firmware.
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