CVE-2026-51646: TOTOLINK T6 vulnerability
Published Aug 28, 2026
·Updated
Incorrect access control in the getParentalRules function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to obtain parental-control rules 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
Who can retrieve the parental-control rules?
An unauthenticated attacker can retrieve them, so no prior login is required.
2
What access does an attacker need to exploit this issue?
The attacker needs the ability to send a crafted POST request to the router's /cgi-bin/cstecgi.cgi endpoint.
3
Which firmware version is identified as affected?
The issue is reported in TOTOLINK T6 firmware version 4.1.5cu.748_B20211015.