Vulnerability-Lookup

GHSA-FRHH-W545-JJH2

Vulnerability from github – Published: 2026-05-29 18:31 – Updated: 2026-05-29 18:31

Details

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.

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-5768"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-306"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-29T18:17:12Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-frhh-w545-jjh2",
  "modified": "2026-05-29T18:31:36Z",
  "published": "2026-05-29T18:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5768"
    },
    {
      "type": "WEB",
      "url": "https://fourthfrontier.com/pages/contact-us"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-148-01.json"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-148-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-5768 (GCVE-0-2026-5768)

Vulnerability from cvelistv5 – Published: 2026-05-29 16:58 – Updated: 2026-05-29 19:31

Title

Fourth Frontier Frontier X Mobile Application, Frontier X2 Missing Authentication for Critical Function

Summary

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-306

Assigner

icscert

References

3 references

URL	Tags
https://fourthfrontier.com/pages/contact-us
https://www.cisa.gov/news-events/ics-medical-advi…
https://github.com/cisagov/CSAF/blob/develop/csaf…

Impacted products

3 products

Vendor	Product	Version
Fourth Frontier	Frontier X Android application	Affected: 0 , < 15.0.0 (custom)
Fourth Frontier	Frontier X IOS application	Affected: 0 , < 25.0.0 (custom)
Fourth Frontier	Frontier X2	Affected: All versions

Date Public

2026-05-28 16:46

Credits

Shakir Zari and Jerin Sunny reported this vulnerability to CISA.

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JSON

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                "timestamp": "2026-05-29T19:25:07.692084Z",
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  },
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-FRHH-W545-JJH2

CVE-2026-5768 (GCVE-0-2026-5768)

Tags

Sightings

Nomenclature