CVE-2026-51626: TOTOLINK T6 vulnerability
Published Aug 28, 2026
·Updated
Incorrect access control in the getWiFiWpsCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to obtain WPS configuration, including the current PIN, 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 28, 2026
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Frequently Asked Questions
1
Who can exploit this issue?
Any unauthenticated attacker able to reach the router's web management CGI endpoint can request the WPS configuration. No valid router login is required.
2
What information could be exposed?
The affected function can disclose the WPS configuration, including the router's current WPS PIN.
3
Which device and firmware are identified as affected?
The reported affected product is the TOTOLINK T6 running firmware 4.1.5cu.748_B20211015.