CVE-2021-44158: ASUS RT-AX56U Router - Stack-based buffer overflow

Published Jan 3, 2022
·
Updated

ASUS RT-AX56U Wi-Fi Router is vulnerable to stack-based buffer overflow due to improper validation for httpd parameter length. An authenticated local area network attacker can launch arbitrary code execution to control the system or disrupt service.

Affected Software

4 affected components
All of the following
ASUS Rt-ax56u Firmware=3.0.0.4.386.44266
ASUS RT-AX56U
ASUS Rt-ax56u Firmware=3.0.0.4.386.44266
ASUS RT-AX56U

Remediation

Information

ASUS RT-AX56U firmware update version to 3.0.0.4.386.45898

Event History

Jan 3, 2022
CVE Published
via MITRE·10:10 AM
Data Sourced
via MITRE·10:10 AM
RemedyDescriptionSeverityWeakness
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the vulnerability ID for the ASUS RT-AX56U Wi-Fi Router vulnerability?

The vulnerability ID for the ASUS RT-AX56U Wi-Fi Router vulnerability is CVE-2021-44158.

2

What is the severity of CVE-2021-44158?

The severity of CVE-2021-44158 is high, with a severity value of 8.

3

What is the affected software version of CVE-2021-44158?

The affected software version of CVE-2021-44158 is ASUS RT-AX56U Firmware 3.0.0.4.386.44266.

4

What is the risk of CVE-2021-44158?

CVE-2021-44158 poses a risk of arbitrary code execution, allowing an attacker to control the system or disrupt services.

5

Is ASUS RT-AX56U vulnerable to CVE-2021-44158?

No, ASUS RT-AX56U is not vulnerable to CVE-2021-44158.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203