CVE-2026-51734: TOTOLINK T6 vulnerability
Published Aug 31, 2026
·Updated
Incorrect access control in the informSlaveUpdate function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to trigger mesh slave update coordination 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
Data Sourced
via NVD·08:17 PM
Description
Frequently Asked Questions
1
Which devices are exposed to this issue?
The affected product and firmware identified in the available data are TOTOLINK T6 devices running version 4.1.5cu.748_B20211015.
2
Does exploitation require authentication?
No. An unauthenticated attacker can trigger mesh slave update coordination by sending a crafted POST request to /cgi-bin/cstecgi.cgi.