CVE-2026-51684: TOTOLINK T6 vulnerability
Published Aug 31, 2026
·Updated
Incorrect access control in the setStorageCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to alter the storage-related service state 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
Frequently Asked Questions
1
Who can exploit this issue?
An unauthenticated attacker who can send a crafted POST request to the device's /cgi-bin/cstecgi.cgi endpoint can exploit it. No login is required.
2
What can an attacker change?
The issue allows alteration of the storage-related service state through the setStorageCfg function.
3
How can I determine whether a device is affected?
The affected product and firmware identified in the available data are TOTOLINK T6 running 4.1.5cu.748_B20211015. Verify the device model and installed firmware version.