CVE-2026-51748: Medium severity TOTOLINK T6 vulnerability
Published Sep 1, 2026
·Updated
Incorrect access control in the sendStaticInfoToMaster function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to update stored slave inventory records via sending a crafted MQTT message to the csbroker component.
Affected Software
1 affected component
TOTOLINK T6=4.1.5cu.748_B20211015
Event History
Sep 1, 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 exploit this issue?
The attacker does not need to authenticate. Exploitation requires sending a crafted MQTT message to the cs_broker component.
2
What can an attacker change?
An attacker can update stored slave inventory records through the affected sendStaticInfoToMaster function.
3
Which product version is identified as affected?
The reported affected version is TOTOLINK T6 4.1.5cu.748_B20211015.