CVE-2022-43972

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

No affected versions have been published.

Timeline

Published
Jan 9, 2023
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2022-43972: High severity, CVSS 7.5 | Vulnix