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
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 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)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

May 29, 2026

Last Modified

July 22, 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 6× in last 7d / 63× 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 238 total refreshes for this CVE.

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

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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 July 22, 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 0% probability of exploitation in the next 30 days, which ranks it in the top 79.8% of all scored CVEs.
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.

Dependency Blast Radius

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