CVE-2026-51673: High severity TOTOLINK T6 vulnerability
Published Aug 31, 2026
·Updated
Incorrect access control in the setNtpCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to alter time synchronization settings 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·02:17 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What access does an attacker need to change the time synchronization settings?
No authentication is required. An attacker can alter the settings by sending a crafted POST request to /cgi-bin/cstecgi.cgi.
2
Which device and firmware version are identified as affected?
The reported affected product is the TOTOLINK T6 running firmware version 4.1.5cu.748_B20211015.