CVE-2026-51769

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

EUVD-2026-69205

Incorrect access control in the updatePriChannel function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to rescan and switch the primary mesh channel via sending a crafted MQTT message to the csbroker component...

CVE-2026-51756

Incorrect access control in the meshSlaveUpgfw function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to start firmware flashing using existing upgrade files via sending a crafted MQTT message to the csbroker component...

EUVD-2026-69380

Incorrect access control in the sendToMasterQosConfig function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to forward attacker-controlled QoS settings to the master via sending a crafted MQTT message to the csbroker component...

EUVD-2026-69195

Incorrect access control in the recvSlaveCloudCheckStatus function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to overwrite cloud-result tracking files via sending a crafted MQTT message to the csbroker component...

CVE-2026-51760

The TOTOLINK T6 wireless dual-band Mesh router, specifically version 4.1.5cu.748_B20211015 , is vulnerable to an incorrect access control flaw in the informSyncUpgfw() function. Unauthenticated attackers can exploit this by sending a crafted MQTT message to the cs_broker component. This allows th...

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-2026-51757

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...

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...

CVE-2026-51763: Improper Access Control

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...

CVE-2026-51757

The TOTOLINK T6 running firmware version 4.1.5cu.748_B20211015 is vulnerable to an incorrect access control flaw in the meshSlaveUpdate function. An unauthenticated attacker can trigger a firmware download or flash workflow on a slave device by sending a crafted MQTT message to the cs_broker comp...

EUVD-2026-69198

Incorrect access control in the updateLanIp function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to refresh the LAN address state via sending a crafted MQTT message to the csbroker component...

CVE-2026-51745

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...

CVE-2026-51748

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-2026-84290

Name of the Vulnerable Software and Affected Versions NetStaX EtherNet/IP Stack versions prior to 5.6.1 Description An issue exists where a large Class 3 explicit-message request can exceed the application-side receive buffer without triggering an error or warning. This can lead to memory...

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...

EUVD-2026-69209

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...

PT-2026-84233

A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet with an oversized embedded message request can cause the RSLinx® Classic service to crash, requiring a restart of the service to recover...

EUVD-2026-69378

Incorrect access control in the setElinkQosConfig function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to modify privileged QoS policy on the master device via sending a crafted MQTT message to the csbroker component...

EUVD-2026-69194

Incorrect access control in the recvIndirectMeshInfo function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to insert or replace mesh neighbor records via sending a crafted MQTT message to the csbroker component...