PT-2026-84239 · Totolink · Totolink T6
CVE-2026-51757
·
Published
2026-09-01
·
Updated
2026-09-01
CVSS v3.1
9.8
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
TOTOLINK T6 version 4.1.5cu.748 B20211015
Description
Incorrect access control in the
meshSlaveUpdate() function allows unauthenticated attackers to initiate a firmware download or flash workflow on the slave device. This is achieved by sending a crafted MQTT message to the cs broker component. MQTT (Message Queuing Telemetry Transport) is a lightweight messaging protocol used for communication between devices.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Improper Access Control
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Weakness Enumeration
Related Identifiers
Affected Products
Totolink T6