CVE-2026-51674: TOTOLINK T6 vulnerability
Published Aug 31, 2026
·Updated
Incorrect access control in the setScheduleCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to configure forced reboot tasks 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·02:17 PM
Description
Frequently Asked Questions
1
What access does an attacker need to exploit this issue?
An attacker does not need to authenticate. Exploitation consists of sending a crafted POST request to the device's /cgi-bin/cstecgi.cgi endpoint.
2
What could an attacker change through this vulnerability?
An attacker can configure forced reboot tasks through the setScheduleCfg function. This could allow unauthorized scheduling of device reboots.
3
Which device version is identified as affected?
The affected product identified is the TOTOLINK T6 running firmware version 4.1.5cu.748_B20211015.