OS Command Injection in RT-AX55 - CVE-2023-39780

 

OS Command Injection in RT-AX55 - CVE-2023-39780

Published: May 29, 2025


Vulnerability identifier: #VU109933
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2023-39780
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability: Public exploit is available
Vendor: Asus
Affected software:
RT-AX55

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation in the "qos_bw_rulelist" parameter in /start_apply.htm. A remote user can pass specially crafted data to the application and execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


How to mitigate CVE-2023-39780

Install updates from vendor's website.

Sources