What is the severity of CVE-2023-22921?

The severity of CVE-2023-22921 is high with a score of 7.5.

How does CVE-2023-22921 impact the Zyxel NBG-418N v2 firmware?

CVE-2023-22921 is a cross-site scripting (XSS) vulnerability that could allow a remote authenticated attacker to store malicious scripts using the web management interface, resulting in denial-of-service (DoS) conditions.

Is the Zyxel NBG-418N v2 firmware version prior to V1.00(AARP.14)C0 affected by CVE-2023-22921?

Yes, the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 are affected by CVE-2023-22921.

How can an attacker exploit CVE-2023-22921?

An attacker with administrator privileges can exploit CVE-2023-22921 by storing malicious scripts in the web management interface parameter.

Where can I find more information about CVE-2023-22921?

You can find more information about CVE-2023-22921 in the Zyxel Security Advisory for Multiple Vulnerabilities in NBG-418N V2 Home Router: [link](https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-nbg-418n-v2-home-router)

Vulnerability/
CVE-2023-22921

high

7.5

CWE

1/5/2023

6/5/2023

CVE-2023-22921: XSS

First published: Mon May 01 2023(Updated: )

A cross-site scripting (XSS) vulnerability in the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a remote authenticated attacker with administrator privileges to store malicious scripts using a web management interface parameter, resulting in denial-of-service (DoS) conditions on an affected device.

Credit: security@zyxel.com.tw

Affected Software	Affected Version	How to fix
Zyxel Nbg-418n Firmware	<=1.00\(aarp.13\)c0
ZyXEL NBG-418N	=v2

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Reference Links

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-nbg-418n-v2-home-router

Frequently Asked Questions

What is the severity of CVE-2023-22921?
The severity of CVE-2023-22921 is high with a score of 7.5.
How does CVE-2023-22921 impact the Zyxel NBG-418N v2 firmware?
CVE-2023-22921 is a cross-site scripting (XSS) vulnerability that could allow a remote authenticated attacker to store malicious scripts using the web management interface, resulting in denial-of-service (DoS) conditions.
Is the Zyxel NBG-418N v2 firmware version prior to V1.00(AARP.14)C0 affected by CVE-2023-22921?
Yes, the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 are affected by CVE-2023-22921.
How can an attacker exploit CVE-2023-22921?
An attacker with administrator privileges can exploit CVE-2023-22921 by storing malicious scripts in the web management interface parameter.
Where can I find more information about CVE-2023-22921?
You can find more information about CVE-2023-22921 in the Zyxel Security Advisory for Multiple Vulnerabilities in NBG-418N V2 Home Router: [link](https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-nbg-418n-v2-home-router)

collector/nvd-latest
collector/nvd-index
vendor/zyxel
canonical/zyxel nbg-418n firmware
version/zyxel nbg-418n firmware/1.00\(aarp.13\)c0
canonical/zyxel nbg-418n
version/zyxel nbg-418n/v2

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