Statement on Deny of Service (DoS) vulnerability on TL-WR940N V6 (CVE-2025-11676)

Statement on Deny of Service (DoS) vulnerability on TL-WR940N V6 (CVE-2025-11676)

Vulnerability Description:

Improper input validation vulnerability in TP-Link System Inc. TL-WR940N V6 (UPnP modules), which allows unauthenticated adjacent attackers to perform DoS attack. This issue affects TL-WR940N V6 <= Build 220801.

Impact:

This vulnerability may cause the UPnP service on the device to become unavailable.

CVSS v4.0 Score: 7.1 / High

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected Products/Versions and Fixes:

Recommendation(s):

We strongly recommended that users with the affected device(s) take the following action(s):

1. Download and update to the latest firmware to fix the vulnerabilities.

The latest firmware of related models and download links are below:

https://www.tp-link.com/us/support/download/tl-wr940n/v6/#Firmware

https://www.tp-link.com/en/support/download/tl-wr940n/v6/#Firmware

Disclaimer:

If you do not take the recommended action(s) stated above, this vulnerability concern will remain. TP-Link cannot bear any responsibility for the consequences that could have been avoided by following the recommended action(s) in this statement.