What is the severity of CVE-2021-4030?

CVE-2021-4030 has been assigned a medium severity rating due to its potential impact on user privacy and system integrity.

How do I fix CVE-2021-4030?

To mitigate CVE-2021-4030, it is recommended to update the Zyxel firmware to the latest version that addresses the vulnerability.

What systems are affected by CVE-2021-4030?

CVE-2021-4030 specifically affects Zyxel ARMOR Z1 and Z2 firmware versions 1.00(aawb.10)c0 and earlier for the NBG6816 and NBG6817 routers.

What type of attack does CVE-2021-4030 allow?

CVE-2021-4030 allows attackers to perform cross-site request forgery (CSRF) attacks, potentially executing arbitrary commands on the affected devices.

Is there a known exploitation of CVE-2021-4030?

As of the latest reports, there have been no documented exploits specifically targeting CVE-2021-4030 in the wild.

Vulnerability/
CVE-2021-4030

high

8.8

CWE

352

22/2/2022

3/8/2024

CVE-2021-4030: CSRF

First published: Tue Feb 22 2022(Updated: )

A cross-site request forgery vulnerability in the HTTP daemon of the Zyxel ARMOR Z1/Z2 firmware could allow an attacker to execute arbitrary commands if they coerce or trick a local user to visit a compromised website with malicious scripts.

Credit: security@zyxel.com.tw

Affected Software	Affected Version	How to fix
Zyxel Nbg6816 Firmware	=1.00\(aawb.10\)c0
Zyxel Nbg6816
Zyxel Nbg6817 Firmware	<1.00\(abcs.11\)c0
Zyxel Nbg6817

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Reference Links

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

Frequently Asked Questions

What is the severity of CVE-2021-4030?
CVE-2021-4030 has been assigned a medium severity rating due to its potential impact on user privacy and system integrity.
How do I fix CVE-2021-4030?
To mitigate CVE-2021-4030, it is recommended to update the Zyxel firmware to the latest version that addresses the vulnerability.
What systems are affected by CVE-2021-4030?
CVE-2021-4030 specifically affects Zyxel ARMOR Z1 and Z2 firmware versions 1.00(aawb.10)c0 and earlier for the NBG6816 and NBG6817 routers.
What type of attack does CVE-2021-4030 allow?
CVE-2021-4030 allows attackers to perform cross-site request forgery (CSRF) attacks, potentially executing arbitrary commands on the affected devices.
Is there a known exploitation of CVE-2021-4030?
As of the latest reports, there have been no documented exploits specifically targeting CVE-2021-4030 in the wild.

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agent/severity
agent/last-modified-date
agent/description
agent/first-publish-date
agent/event
agent/tags
agent/source
vendor/zyxel
canonical/zyxel nbg6816 firmware
version/zyxel nbg6816 firmware/1.00\(aawb.10\)c0
canonical/zyxel nbg6816
canonical/zyxel nbg6817 firmware
canonical/zyxel nbg6817

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