CVE-2026-51742: Improper Access Control

Incorrect access control in the discoverWan function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to trigger WAN discovery logic via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

CVE-2026-51744: Improper Access Control

Incorrect access control in the recvmeshinfosync function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to force mesh configuration synchronization from an attacker-controlled host via sending a crafted MQTT message to the csbroker component...

CVE-2026-51743: Improper Access Control

Incorrect access control in the guestwifisync function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to disable guest virtual AP interfaces via sending a crafted MQTT message to the csbroker component...

CVE-2026-51767: Improper Access Control

Incorrect access control in the recvClearPairCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to reset pairing state and reboot the device via sending a crafted MQTT message to the csbroker component...

CVE-2026-51757: Improper Access Control

Incorrect access control in the meshSlaveUpdate function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to start a firmware download or flash workflow on the slave device via sending a crafted MQTT message to the csbroker component...

CVE-2026-51745: Improper Access Control

Incorrect access control in the updatePriStaList function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to refresh the primary station list via sending a crafted MQTT message to the csbroker component...

PT-2026-84206

Incorrect access control in the updatePriStaList function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to refresh the primary station list via sending a crafted MQTT message to the cs broker component...

PT-2026-84222

Name of the Vulnerable Software and Affected Versions TOTOLINK T6 version 4.1.5cu.748 B20211015 Description Incorrect access control in the delSlaveDevice function allows unauthenticated attackers to remove a specified slave device from local mesh management data and reboot the system. This is...

CVE-2026-51743

The TOTOLINK T6 wireless dual-band Mesh router (specifically version 4.1.5cu.748_B20211015 ) is vulnerable to an incorrect access control issue in the guest_wifi_sync function. An unauthenticated attacker can exploit this by sending a crafted MQTT message to the cs_broker component, which allows ...

EUVD-2026-69200

Incorrect access control in the meshSlaveUpdate function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to start a firmware download or flash workflow on the slave device via sending a crafted MQTT message to the csbroker component...

EUVD-2026-69206

Incorrect access control in the sendStaticInfoToMaster function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to update stored slave inventory records via sending a crafted MQTT message to the csbroker component...

PT-2026-84314

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 achieve...

PT-2026-84220

Incorrect access control in the sendStaticInfoToMaster function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to update stored slave inventory records via sending a crafted MQTT message to the cs broker component...

PT-2026-84239

Incorrect access control in the meshSlaveUpdate function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to start a firmware download or flash workflow on the slave device via sending a crafted MQTT message to the cs broker component...

PT-2026-84313

Incorrect access control in the remoteCloudUpdateCheck function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to restart the cloud update check workflow via sending a crafted MQTT message to the cs broker component...

CVE-2026-51741

The TOTOLINK T6 wireless dual-band Mesh router (version 4.1.5cu.748_B20211015 ) is vulnerable to an incorrect access control flaw in the clearDiagnosisLog function. This vulnerability allows unauthenticated attackers to erase diagnosis logs by sending a specially crafted POST request to the /cgi-...

CVE-2026-51744

The TOTOLINK T6 wireless dual-band Mesh router, specifically version 4.1.5cu.748_B20211015 , is vulnerable to an improper access control flaw in the recv_mesh_info_sync function. This vulnerability allows unauthenticated attackers to force a mesh configuration synchronization from an attacker-con...

EUVD-2026-69204

Incorrect access control in the delSlaveDevice function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to remove a specified slave device from local mesh management data and reboot the system via sending a crafted MQTT message to the csbroker component...

PT-2026-84246

Incorrect access control in the setDevReboot function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to reboot the local device and, on a master, fan out reboot commands to mesh slaves via sending a crafted MQTT message to the cs broker component...

PT-2026-84223

Incorrect access control in the staticInfoSend function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to trigger static information reporting to the configured master via sending a crafted MQTT message to the cs broker component...