CVE-2026-51764: TOTOLINK T6 vulnerability
Published Sep 1, 2026
·Updated
Incorrect access control in the recvSlaveCloudCheckStatus function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to overwrite cloud-result tracking files 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
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 a successful attack change?
A successful attack can overwrite cloud-result tracking files through the recvSlaveCloudCheckStatus function.