CVE-2026-51744: n/a
Description
Incorrect access control in the recv_mesh_info_sync function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to force mesh configuration synchronization from an attacker-controlled host via sending a crafted MQTT message to the cs_broker component.
CVSS v3.1
Score 9.8critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from improper access control in the recv_mesh_info_sync function of TOTOLINK T6 firmware version 4.1.5cu.748_B20211015. An attacker without authentication can send a specially crafted MQTT message to the cs_broker component, forcing the device to synchronize mesh configuration. The CVSS v3.1 base score is 9.8, indicating critical severity with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an unauthenticated attacker to force mesh configuration synchronization on the affected device, potentially leading to full compromise of device confidentiality, integrity, and availability. This could disrupt network operations or enable further attacks within the mesh network environment.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-06-08T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6a96d1a2acd9273b49bee4fa
Added to database: 09/01/2026, 13:22:42 UTC
Last enriched: 09/07/2026, 13:36:07 UTC
Last updated: 10/16/2026, 06:48:17 UTC
Views: 100
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