CVE-2020-36109: Buffer Overflow

Published Feb 1, 2021
·
Updated

ASUS RT-AX86U router firmware below version under 9.0.0.4386 has a buffer overflow in the blockingrequest.cgi function of the httpd module that can cause code execution when an attacker constructs malicious data.

Affected Software

2 affected components
ASUS Rt-ax86u Firmware<9.0.0.4_386
ASUS RT-AX86U

Event History

Feb 1, 2021
CVE Published
via MITRE·01:14 PM
Data Sourced
via MITRE·01:14 PM
Description
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Frequently Asked Questions

1

What is the vulnerability ID for this ASUS RT-AX86U router firmware vulnerability?

The vulnerability ID for this ASUS RT-AX86U router firmware vulnerability is CVE-2020-36109.

2

What is the severity of CVE-2020-36109?

The severity of CVE-2020-36109 is critical with a severity value of 9.8.

3

How can an attacker exploit this vulnerability?

An attacker can exploit this vulnerability by constructing malicious data that triggers a buffer overflow in the blocking_request.cgi function of the httpd module.

4

Which version of ASUS RT-AX86U router firmware is affected by this vulnerability?

ASUS RT-AX86U router firmware versions below 9.0.0.4_386 are affected by this vulnerability.

5

How can I fix the CVE-2020-36109 vulnerability?

To fix the CVE-2020-36109 vulnerability, you should update your ASUS RT-AX86U router firmware to version 9.0.0.4_386 or higher.

Contact

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