CVE-2022-43970 HIGH

CVE-2022-43970: Buffer overflow in Linksys WRT54GL

Vendor Linksys
Product WRT54GL Wireless-G Broadband Router
Weakness CWE-120
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

A buffer overflow vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. A stack-based buffer overflow in the Start_EPI function within the httpd binary allows an authenticated attacker with administrator privileges to execute arbitrary commands on the underlying Linux operating system as root. This vulnerablity can be triggered over the network via a malicious POST request to /apply.cgi.

Key dates

02Disclosure timeline

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