CVE-2026-5768
Fourth Frontier Frontier X Mobile Application, Frontier X2 Missing Authentication for Critical Function
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.
INFO
Published Date :
May 29, 2026, 6:17 p.m.
Last Modified :
July 22, 2026, 6:10 a.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-5768
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 7d14cffa-0d7d-4270-9dc0-52cabd5a23a6 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
- Enforce pairing for BLE GATT access.
- Implement GATT characteristic authorization.
- Secure BLE advertisement data.
- Authenticate BLE devices connecting to the app.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-5768.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-5768 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-5768
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-5768 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-5768 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Jul. 22, 2026
Action Type Old Value New Value Added Translation Title: productos Frontier X de Fourth Frontier, Description: El dispositivo Frontier X2 permite acceso de lectura/escritura BLE no autenticado a características GATT críticas sin aplicar autenticación o autorización de emparejamiento. Esto permite a los atacantes dentro del alcance BLE realizar un control no autorizado de las funciones del dispositivo, incluyendo iniciar/detener actividades, activar vibraciones, causar condiciones de denegación de servicio y 'fuzzing' de valores de características para inducir un comportamiento inesperado. Además, la aplicación móvil Frontier X carece de una autenticación adecuada del dispositivo BLE, permitiendo a los atacantes suplantar un dispositivo Frontier X2 legítimo y conectarse a la aplicación. Al clonar anuncios BLE y exponer características GATT esperadas, los atacantes pueden manipular estados de actividad e inyectar telemetría de salud fabricada como frecuencia respiratoria, frecuencia cardíaca, esfuerzo y otros datos relacionados con la salud en la aplicación móvil. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Fourth Frontier', 'product': 'Frontier X Android application', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '15.0.0', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Fourth Frontier', 'product': 'Frontier X IOS application', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '25.0.0', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Fourth Frontier', 'product': 'Frontier X2', 'versions': [{'status': 'affected', 'version': 'All versions'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-5768', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-05-29T19:25:07.692084Z'} -
New CVE Received by [email protected]
May. 29, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-306 Added Reference https://fourthfrontier.com/pages/contact-us Added Reference https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-148-01.json Added Reference https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-148-01