CVE-2023-39471: TP-Link TL-WR841N ated_tp Command Injection Remote Code Execution Vulnerability

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-03 · updated 2026-06-17
Weakness: CWE-78

Description

TP-Link TL-WR841N ated_tp Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR841N routers. Authentication is not required to exploit this vulnerability. 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-21825.

Affected products

TP-Link Tl-Wr840N Firmware: before 231121 — fixed in 231121
TP-Link TL-WR841N: before 231119 — fixed in 231119

How to fix

Upgrade to a fixed version: TP-Link Tl-Wr840N Firmware 231121; TP-Link TL-WR841N 231119. Check the vendor advisory for mitigations.

References

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