CVE-2026-5768
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk35th percentile - higher than 35% of all known CVEs
Summary
The Frontier X2 device allows unauthenticated access to critical GATT characteristics via BLE without pairing authentication. Attackers can control device functions and inject fabricated health telemetry data.
Risk Assessment
Lack of authorization may lead to unauthorized access to device functions and manipulation of health data, posing serious risks to users.
Recommendation
It is recommended to implement pairing authorization mechanisms and security measures in the mobile application to prevent unauthorized access and data manipulation.
Original NVD description (English source)
The Frontier X2 device allows unauthenticated BLE read/write access to critical GATT characteristics without enforcing pairing authentication or authorization. This allows attackers within BLE range to perform unauthorized control of device functions, including starting/stopping activities, triggering vibrations, causing denial-of-service conditions, and fuzzing characteristic values to induce unexpected behavior. Additionally, the Frontier X mobile application lacks proper BLE device authentication, allowing attackers to impersonate a legitimate Frontier X2 device and connect to the application. By cloning BLE advertisements and exposing expected GATT characteristics, attackers can manipulate activity states and inject fabricated health telemetry such as breathing rate, heart rate, strain, and other health-related data into the mobile application.