CVE-2026-51654: TOTOLINK T6 vulnerability
Published Aug 28, 2026
·Updated
Incorrect access control in the getScheduleCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to obtain schedule or scheduled-reboot configuration information 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 is exposed to this issue?
Devices running TOTOLINK T6 firmware 4.1.5cu.748_B20211015 are affected if an attacker can send requests to the device's web management interface.
2
What does an attacker need to exploit it?
No authentication is required. An attacker needs to send a crafted POST request to /cgi-bin/cstecgi.cgi targeting the getScheduleCfg function.
3
What information can be obtained?
The issue exposes schedule configuration or scheduled-reboot configuration information.