CVE-2026-51614: TOTOLINK T6 vulnerability
Published Aug 28, 2026
·Updated
Incorrect access control in the getAccessDeviceCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to obtain access-device policy and client state 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
What access does an attacker need to retrieve the information?
No authentication is required. An attacker only needs to send a crafted POST request to the device's /cgi-bin/cstecgi.cgi endpoint.
2
What data may be exposed through this issue?
The affected function can disclose access-device policy information and client state information.
3
Which device software version is identified as affected?
The reported affected product is TOTOLINK T6 running version 4.1.5cu.748_B20211015.