CVE-2022-43973 HIGH

CVE-2022-43973: Arbitrary code execution in Linksys WRT54GL

Vendor Linksys
Product WRT54GL Wireless-G Broadband Router
Weakness CWE-78
Published January 9, 2023
Last update April 9, 2025

CVSS base score

7.2/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

An arbitrary code execution vulnerability exisits in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. The Check_TSSI function within the httpd binary uses unvalidated user input in the construction of a system command. An authenticated attacker with administrator privileges can leverage this vulnerability over the network via a malicious POST request to /apply.cgi to execute arbitrary commands on the underlying Linux operating system as root.

Key dates

02Disclosure timeline

January 9, 2023 CVE published
April 9, 2025 Record updated