CVE-2022-43972 MEDIUM

CVE-2022-43972: Null pointer dereference in Linksys WRT54GL

Vendor Linksys
Product WRT54GL Wireless-G Broadband Router
Weakness CWE-476
Published January 9, 2023
Last update April 9, 2025
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action.

Key dates

02Disclosure timeline

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