CVE-2026-5768

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-29. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
20.0%
KEV
Not listed

Published

May 29, 2026

Last Modified

June 16, 2026

Advisory Details (3)

Auto-updated Jun 2, 2026
Patch available. Sources: cisa.
cisa Patch Available

Fourth Frontier Frontier X Mobile Application, Frontier X2 | CISA

https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-148-01
generic

CSAF/csaf_files/OT/white/2026/icsma-26-148-01.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-148-01.json
generic

Contact Us | Learn About Frontier X for Heart Health & ECG Metrics

https://fourthfrontier.com/pages/contact-us

Vendor Advisories for CVE-2026-5768(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 17× in last 7d / 91× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 180 total refreshes for this CVE.

  1. 2026-07-16 01:58 UTCEG score recompute
  2. 2026-07-16 01:58 UTCGHSA enrichment
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 02:00 UTCEPSS rescore
  5. 2026-07-15 02:00 UTCEPSS rescore
  6. 2026-07-14 14:08 UTCEG score recompute
  7. 2026-07-14 14:08 UTCGHSA enrichment
  8. 2026-07-13 22:31 UTCEPSS rescore
  9. 2026-07-13 06:13 UTCEPSS rescore
  10. 2026-07-13 06:13 UTCEPSS rescore
  11. 2026-07-12 05:46 UTCEPSS rescore
  12. 2026-07-11 17:33 UTCEG score recompute
  13. 2026-07-11 17:33 UTCGHSA enrichment
  14. 2026-07-11 08:27 UTCEPSS rescore
  15. 2026-07-11 08:27 UTCEPSS rescore
  16. 2026-07-09 19:10 UTCEPSS rescore
  17. 2026-07-09 19:10 UTCEPSS rescore
  18. 2026-07-08 17:24 UTCEG score recompute
  19. 2026-07-08 17:24 UTCGHSA enrichment
  20. 2026-07-08 15:16 UTCEPSS rescore
  21. 2026-07-08 15:16 UTCEPSS rescore
  22. 2026-07-07 13:46 UTCEPSS rescore
  23. 2026-07-07 13:46 UTCEPSS rescore
  24. 2026-07-06 16:27 UTCEPSS rescore
  25. 2026-07-06 16:27 UTCEPSS rescore
Show 75 more
  1. 2026-07-06 02:23 UTCEPSS rescore
  2. 2026-07-06 02:23 UTCEPSS rescore
  3. 2026-07-05 02:31 UTCEPSS rescore
  4. 2026-07-05 02:30 UTCEPSS rescore
  5. 2026-07-04 06:31 UTCEPSS rescore
  6. 2026-07-04 06:31 UTCEPSS rescore
  7. 2026-07-02 19:17 UTCEG score recompute
  8. 2026-07-02 19:16 UTCGHSA enrichment
  9. 2026-07-02 04:20 UTCEG score recompute
  10. 2026-07-02 04:20 UTCGHSA enrichment
  11. 2026-07-01 15:07 UTCEPSS rescore
  12. 2026-07-01 13:26 UTCEG score recompute
  13. 2026-07-01 13:26 UTCGHSA enrichment
  14. 2026-07-01 01:31 UTCEG score recompute
  15. 2026-07-01 01:31 UTCGHSA enrichment
  16. 2026-06-30 23:22 UTCEPSS rescore
  17. 2026-06-30 00:57 UTCEG score recompute
  18. 2026-06-30 00:57 UTCGHSA enrichment
  19. 2026-06-29 14:06 UTCEPSS rescore
  20. 2026-06-29 12:49 UTCEG score recompute
  21. 2026-06-29 12:49 UTCGHSA enrichment
  22. 2026-06-28 16:13 UTCEG score recompute
  23. 2026-06-28 16:13 UTCGHSA enrichment
  24. 2026-06-28 14:07 UTCEPSS rescore
  25. 2026-06-28 04:56 UTCEPSS rescore
  26. 2026-06-28 04:18 UTCEG score recompute
  27. 2026-06-28 04:17 UTCGHSA enrichment
  28. 2026-06-27 16:21 UTCEG score recompute
  29. 2026-06-27 16:21 UTCGHSA enrichment
  30. 2026-06-27 04:14 UTCEG score recompute
  31. 2026-06-27 04:14 UTCGHSA enrichment
  32. 2026-06-27 03:08 UTCEPSS rescore
  33. 2026-06-26 16:15 UTCEG score recompute
  34. 2026-06-26 16:15 UTCGHSA enrichment
  35. 2026-06-26 03:15 UTCEG score recompute
  36. 2026-06-26 03:15 UTCGHSA enrichment
  37. 2026-06-25 15:20 UTCEG score recompute
  38. 2026-06-25 15:20 UTCGHSA enrichment
  39. 2026-06-25 13:50 UTCEPSS rescore
  40. 2026-06-25 03:20 UTCEG score recompute
  41. 2026-06-25 03:19 UTCGHSA enrichment
  42. 2026-06-24 15:21 UTCEG score recompute
  43. 2026-06-24 15:21 UTCGHSA enrichment
  44. 2026-06-24 14:05 UTCEPSS rescore
  45. 2026-06-23 21:33 UTCEPSS rescore
  46. 2026-06-23 21:33 UTCEPSS rescore
  47. 2026-06-22 14:25 UTCEPSS rescore
  48. 2026-06-22 14:25 UTCEPSS rescore
  49. 2026-06-21 14:56 UTCEPSS rescore
  50. 2026-06-21 14:56 UTCEPSS rescore
  51. 2026-06-21 01:59 UTCEPSS rescore
  52. 2026-06-21 01:59 UTCEPSS rescore
  53. 2026-06-19 19:26 UTCEPSS rescore
  54. 2026-06-19 19:26 UTCEPSS rescore
  55. 2026-06-18 22:27 UTCEG score recompute
  56. 2026-06-18 22:26 UTCGHSA enrichment
  57. 2026-06-18 17:52 UTCEPSS rescore
  58. 2026-06-18 17:52 UTCEPSS rescore
  59. 2026-06-18 01:23 UTCEG score recompute
  60. 2026-06-18 01:23 UTCGHSA enrichment
  61. 2026-06-17 17:53 UTCEPSS rescore
  62. 2026-06-17 12:29 UTCEG score recompute
  63. 2026-06-17 12:29 UTCGHSA enrichment
  64. 2026-06-17 00:17 UTCEG score recompute
  65. 2026-06-17 00:17 UTCGHSA enrichment
  66. 2026-06-16 17:53 UTCEPSS rescore
  67. 2026-06-16 12:23 UTCEG score recompute
  68. 2026-06-16 12:23 UTCGHSA enrichment
  69. 2026-06-16 00:20 UTCEG score recompute
  70. 2026-06-16 00:20 UTCGHSA enrichment
  71. 2026-06-15 17:49 UTCEPSS rescore
  72. 2026-06-15 17:49 UTCEPSS rescore
  73. 2026-06-15 12:25 UTCEG score recompute
  74. 2026-06-15 12:25 UTCGHSA enrichment
  75. 2026-06-14 23:18 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-5768?
CVE-2026-5768 is a high vulnerability published on May 29, 2026. 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,…
When was CVE-2026-5768 disclosed?
CVE-2026-5768 was first published in the National Vulnerability Database on May 29, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-5768 actively exploited?
CVE-2026-5768 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-5768?
CVE-2026-5768 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-5768?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5768, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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