CVE-2026-51613: TOTOLINK T6 vulnerability
Published Aug 28, 2026
·Updated
Incorrect access control in the getDeviceInfo function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to obtain device identification details 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
Which deployments are exposed?
TOTOLINK T6 devices running firmware version 4.1.5cu.748_B20211015 are identified as affected. The issue is reachable through the device's CGI interface at /cgi-bin/cstecgi.cgi.
2
Does an attacker need to authenticate first?
No. The vulnerability allows unauthenticated attackers to obtain device identification details by sending a crafted POST request.
3
What information can be obtained through exploitation?
An attacker can obtain device identification details through the getDeviceInfo function.