CVE-2026-5768: Fourth Frontier Frontier X Android application · Missing Authentication
Affects Fourth Frontier Frontier X Android applicationSource CVE Database V5
Not known to be exploited · CVSS 8.8 High : upgrade to 15.0.0 soon.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 15.0.0, 25.0.0
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 29 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade Frontier X to 15.0.0 (Android application) or 25.0.0 (IOS application).
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Fourth FrontierFrontier X Android application | Affected
| Fixed in
|
| Fourth FrontierFrontier X IOS application | Affected
| Fixed in
|
| Fourth FrontierFrontier X2 | Affected
| Fixed in– |
AI-suggested
If you cannot patch yet, users should limit physical proximity of untrusted devices to the Frontier X2 device and exercise caution when pairing or connecting BLE devices. Monitoring for unusual device behavior or telemetry anomalies may help detect exploitation attempts, but no specific vendor-recommended mitigations are currently documented.
Description
CVE-2026-5768 is a high-severity vulnerability in the Fourth Frontier Frontier X Android application and its associated Frontier X2 device. The device permits unauthenticated Bluetooth Low Energy (BLE) read/write access to critical GATT characteristics without enforcing pairing authentication or authorization. This allows attackers within BLE range to control device functions such as starting or stopping activities, triggering vibrations, causing denial-of-service, and fuzzing characteristic values. Additionally, the mobile application lacks proper BLE device authentication, enabling attackers to impersonate legitimate devices and inject fabricated health telemetry data.