CVE-2022-42433: TP-Link Tl-WR841 Firmware

High severity, CVSS 8.0. EPSS: 0.6% chance of exploitation in the next 30 days.

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR841N TL-WR841N(US)_V14_220121 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the ated_tp service. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-17356.

Affected products

• TP-Link Tl-WR841 Firmware: before 220914 (fixed in 220914)

Published 2023-03-29. Last modified 2026-06-17.