CVE-2026-51757
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.
- Published Sep 1, 2026
- CVSS 9.8 critical
- 0.6% chance of exploitation in the next 30 days (EPSS)