CVE-2026-51766

TOTOLINK T6 (firmware 4.1.5cu.748_B20211015) contains an incorrect access control flaw in the setDevReboot function. An unauthenticated, network-based attacker can send a crafted MQTT message to the cs_broker component to reboot the device. On a mesh master , the reboot command fans out to all me...

CVE-2026-51767

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-2026-51763

An incorrect access control flaw in the freeStaClient function of TOTOLINK T6 (firmware 4.1.5cu.748_B20211015) allows unauthenticated network attackers to forcibly disconnect wireless clients by sending a crafted MQTT message to the cs_broker component. The CVSS v3.1 score is 9.8 (Critical) with ...

CVE-2026-51763

Incorrect access control in the freeStaClient function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to forcibly disconnect wireless clients via sending a crafted MQTT message to the csbroker component...

EUVD-2026-69197

Incorrect access control in the meshInfoKick function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to kick or clean stale mesh information/state and trigger regeneration of mesh metadata via sending a crafted MQTT message to the csbroker component...

CVE-2026-51743

CVE-2026-51743 is an incorrect access control vulnerability in the guest_wifi_sync function of the TOTOLINK T6 router running firmware 4.1.5cu.748_B20211015 . An unauthenticated attacker can send a crafted MQTT message to the cs_broker component to disable guest virtual AP interfaces. The vulnera...

CVE-2026-51760

Incorrect access control in the informSyncUpgfw function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to mass-trigger firmware update activity across mesh slaves via sending a crafted MQTT message to the csbroker component...

CVE-2026-51743

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-2026-51762

TOTOLINK T6 version 4.1.5cu.748_B20211015 is affected by an incorrect access control flaw in the meshInfoKick function. An unauthenticated attacker can send a crafted MQTT message to the cs_broker component to kick or clean stale mesh information/state and trigger regeneration of mesh metadata. T...

CVE-2026-51744

CVE-2026-51744 is an incorrect access control flaw in the recv_mesh_info_sync function of TOTOLINK T6 (firmware 4.1.5cu.748_B20211015). An unauthenticated remote attacker can send a crafted MQTT message to the cs_broker component to force mesh configuration synchronization from an attacker-contro...

CVE-2026-51748

CVE-2026-51748 is an incorrect access control vulnerability in the sendStaticInfoToMaster function of TOTOLINK T6 firmware version 4.1.5cu.748_B20211015 . An unauthenticated attacker can send a crafted MQTT message to the cs_broker component to update stored slave inventory records, achieving a h...

CVE-2026-51744

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-2026-51752

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

CVE-2026-51757

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...

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...

EUVD-2026-69203

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

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-2026-69202

Incorrect access control in the updateSlaveIpList function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to overwrite the slave IP inventory state via sending a crafted MQTT message to the csbroker component...

CVE-2026-51754

Incorrect access control in the updateSlaveIpList function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to overwrite the slave IP inventory state via sending a crafted MQTT message to the csbroker component...