CVE-2026-5768— Fourth Frontier Frontier X Mobile Application, Frontier X2 Missing Authentication for Critical Function
Affected Version Matrix 3
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Fourth Frontier | Frontier X Android application | < 15.0.0 | affected |
| Fourth Frontier | Frontier X IOS application | < 25.0.0 | affected |
| Fourth Frontier | Frontier X2 | All versions | affected |
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I. Basic Information for CVE-2026-5768
Vulnerability Information
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Vulnerability Title
Fourth Frontier Frontier X Mobile Application, Frontier X2 Missing Authentication for Critical Function
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
关键功能的认证机制缺失
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Fourth Frontier | Frontier X Android application | 0 ~ 15.0.0 | - | |
| Fourth Frontier | Frontier X IOS application | 0 ~ 25.0.0 | - | |
| Fourth Frontier | Frontier X2 | All versions | - |
II. Public POCs for CVE-2026-5768
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Vendor Advisories for CVE-2026-5768 (2)
IV. Related Vulnerabilities
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V. Comments for CVE-2026-5768
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