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VulnerabilityPublished

CVE-2026-5768: Fourth Frontier Frontier X Android application · Missing Authentication

Affects Fourth Frontier Frontier X Android applicationSource CVE Database V5

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Not known to be exploited · CVSS 8.8 High : upgrade to 15.0.0 soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
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:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
Fourth FrontierFrontier X Android applicationAffected
  • <15.0.0
Fixed in
  • 15.0.0
Fourth FrontierFrontier X IOS applicationAffected
  • <25.0.0
Fixed in
  • 25.0.0
Fourth FrontierFrontier X2Affected
  • =All versions
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.

References

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