CVE-2026-51750

Published Sep 1, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Description
Incorrect access control in the updatePriChannel function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to rescan and switch the primary mesh channel via sending a crafted MQTT message to the cs_broker component.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Unauthenticated MQTT Channel Switch Exploit in TOTOLINK T6 Firmware
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Title Unauthenticated MQTT Channel Switch Exploit in TOTOLINK T6 Firmware
Weaknesses CWE-284
Type Values Removed Values Added
First Time appeared Totolink
Totolink t6
Vendors & Products Totolink
Totolink t6
Type Values Removed Values Added
Description Incorrect access control in the updatePriChannel function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to rescan and switch the primary mesh channel via sending a crafted MQTT message to the cs_broker component.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 2, 2026, 6:31 PM
Reserved
Jun 8, 2026, 12:00 AM
Status
Deferred
Published
Sep 1, 2026, 2:17 PM
Modified
Sep 3, 2026, 5:21 PM