CVE-2026-51658: TOTOLINK T6 vulnerability
Published Aug 28, 2026
·Updated
Incorrect access control in the getDmzCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to obtain DMZ 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
Which systems are confirmed affected?
The reported affected system is a TOTOLINK T6 running firmware version 4.1.5cu.748_B20211015. No other models or firmware versions are identified in the available data.
2
Does exploitation require an authenticated account or prior access?
No. The issue is described as exploitable by unauthenticated attackers using a crafted POST request.
3
What information could be exposed?
An attacker can obtain DMZ configuration information through the getDmzCfg function.