CVE-2026-51631: TOTOLINK T6 vulnerability
Published Aug 28, 2026
·Updated
Incorrect access control in the getStaticDhcpRules function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to obtain WPS runtime status 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?
An unauthenticated attacker able to send HTTP POST requests to the router's CGI endpoint can exploit it. The issue affects TOTOLINK T6 version 4.1.5cu.748_B20211015.
2
What information can be obtained through exploitation?
The vulnerable getStaticDhcpRules function can disclose the device's WPS runtime status.
3
Which endpoint should be monitored or restricted?
The affected request is sent to /cgi-bin/cstecgi.cgi using a crafted POST request. Restrict unauthenticated access to the router management interface, particularly from untrusted networks, to reduce exposure.