CVE-2026-51711: TOTOLINK T6 vulnerability
Published Aug 31, 2026
·Updated
Incorrect access control in the setWiFiWpsStart function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to open a wireless pairing window via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
Affected Software
1 affected component
TOTOLINK T6=4.1.5cu.748_B20211015
Event History
Aug 31, 2026
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·04:18 PM
Description
Frequently Asked Questions
1
Who is exposed to this issue?
TOTOLINK T6 devices running firmware version 4.1.5cu.748_B20211015 are identified as affected. An attacker must be able to send HTTP requests to the device's CGI endpoint.
2
What does an attacker need to exploit it?
No authentication is required. The attacker sends a crafted POST request to /cgi-bin/cstecgi.cgi targeting the setWiFiWpsStart function.
3
What is the impact of successful exploitation?
A successful request opens the device's wireless pairing window through WPS. This can allow unauthorized initiation of the wireless pairing process.