PT-2026-84314 · Totolink · Totolink T6
CVE-2026-51770
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Published
2026-09-01
·
Updated
2026-09-02
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
sendToMasterQosConfig() function allows unauthenticated attackers to forward attacker-controlled Quality of Service (QoS) settings to the master. This is achieved by sending a crafted MQTT message to the cs broker component. QoS refers to the description or implementation of the mechanism that controls the overall amount of network resources reserved for specific applications.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