EUVD-2026-81275

TCH QRing smart ring model R20B006 running firmware RT09R201.00.00250318 contains an unauthenticated Bluetooth Low Energy access vulnerability that allows any nearby attacker to connect to the device without pairing, authentication, or user approval by exploiting the exposed Nordic UART Service...

CVE-2026-89034

TCH QRing smart ring model R20_B006 (firmware RT09R20_1.00.00_250318) contains an unauthenticated Bluetooth Low Energy vulnerability. The exposed Nordic UART Service enforces no client authentication or command authorization, allowing any nearby attacker within BLE range to connect directly, bypa...