CVE-2019-6538

CRITICALNVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.3 under NVD CVSS v3. EPSS exploit probability: 0.9%, top 44% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.3Exploit: None knownExposed: 0

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

The Conexus telemetry protocol utilized within Medtronic MyCareLink Monitor versions 24950 and 24952, CareLink Monitor version 2490C, CareLink 2090 Programmer, Amplia CRT-D, Claria CRT-D, Compia CRT-D, Concerto CRT-D, Concerto II CRT-D, Consulta CRT-D, Evera ICD, Maximo II CRT-D and ICD, Mirro ICD, Nayamed ND ICD, Primo ICD, Protecta ICD and CRT-D, Secura ICD, Virtuoso ICD, Virtuoso II ICD, Visia AF ICD, and Viva CRT-D does not implement authentication or authorization. An attacker with adjacent short-range access to an affected product, in situations where the product’s radio is turned on, can inject, replay, modify, and/or intercept data within the telemetry communication. This communication protocol provides the ability to read and write memory values to affected implanted cardiac devices; therefore, an attacker could exploit this communication protocol to change memory in the implanted cardiac device.

CVSS v3
9.3
EG Score
9.3(medium)
EG Risk
47(Track)
EG Risk 47/100SSVC: 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
Severity93% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
58%
KEV
Not listed

Published

March 25, 2019

Last Modified

May 22, 2025

Advisory Details (2)

Auto-updated Sep 15, 2026
Patch available.
generic Patch Available

Medtronic Conexus Radio Frequency Telemetry Protocol (Update C) | CISA

https://ics-cert.us-cert.gov/advisories/ICSMA-19-080-01
generic

CVE-2019-6538 - PSIRT.COM

http://www.securityfocus.com/bid/107544

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 20× 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 139 total refreshes for this CVE.

  1. 2026-09-19 15:37 UTCEPSS rescore
  2. 2026-09-18 19:23 UTCEPSS rescore
  3. 2026-09-17 19:22 UTCEPSS rescore
  4. 2026-09-16 14:04 UTCEPSS rescore
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  24. 2026-08-15 01:26 UTCEPSS rescore
  25. 2026-08-13 21:57 UTCEPSS rescore
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  1. 2026-08-12 13:47 UTCEPSS rescore
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  3. 2026-08-08 16:33 UTCEPSS rescore
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  5. 2026-08-05 19:13 UTCEPSS rescore
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  11. 2026-07-30 16:24 UTCEPSS rescore
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  17. 2026-07-23 14:15 UTCEPSS rescore
  18. 2026-07-23 01:46 UTCEG score recompute
  19. 2026-07-22 22:28 UTCEG score recompute▲ 2.80
  20. 2026-07-22 14:05 UTCEPSS rescore
  21. 2026-07-21 15:22 UTCEPSS rescore
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  23. 2026-07-20 17:04 UTCEPSS rescore
  24. 2026-07-19 14:28 UTCEPSS rescore
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  26. 2026-07-19 02:26 UTCEPSS rescore
  27. 2026-07-19 02:26 UTCEPSS rescore
  28. 2026-07-18 10:02 UTCEPSS rescore
  29. 2026-07-16 16:59 UTCEPSS rescore
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  31. 2026-07-15 16:55 UTCEPSS rescore
  32. 2026-07-15 01:57 UTCEPSS rescore
  33. 2026-07-13 22:27 UTCEPSS rescore
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  35. 2026-07-13 06:10 UTCEPSS rescore
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  37. 2026-07-12 05:44 UTCEPSS rescore
  38. 2026-07-12 05:43 UTCEPSS rescore
  39. 2026-07-11 08:24 UTCEPSS rescore
  40. 2026-07-11 08:24 UTCEPSS rescore
  41. 2026-07-09 19:06 UTCEPSS rescore
  42. 2026-07-08 15:11 UTCEPSS rescore
  43. 2026-07-07 13:43 UTCEPSS rescore
  44. 2026-07-06 16:25 UTCEPSS rescore
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  46. 2026-07-06 02:20 UTCEPSS rescore
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  48. 2026-07-05 02:27 UTCEPSS rescore
  49. 2026-07-04 06:28 UTCEPSS rescore
  50. 2026-07-01 15:03 UTCEPSS rescore
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  52. 2026-06-28 14:04 UTCEPSS rescore
  53. 2026-06-28 04:54 UTCEPSS rescore
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  55. 2026-06-27 03:06 UTCEPSS rescore
  56. 2026-06-25 13:47 UTCEPSS rescore
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  60. 2026-06-23 21:31 UTCEPSS rescore
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  64. 2026-06-21 14:54 UTCEPSS rescore
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  66. 2026-06-21 01:57 UTCEPSS rescore
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  68. 2026-06-19 19:23 UTCEPSS rescore
  69. 2026-06-19 19:23 UTCEPSS rescore
  70. 2026-06-18 17:50 UTCEPSS rescore
  71. 2026-06-18 17:50 UTCEPSS rescore
  72. 2026-06-17 17:50 UTCEPSS rescore
  73. 2026-06-16 17:50 UTCEPSS rescore
  74. 2026-06-15 17:46 UTCEPSS rescore
  75. 2026-06-14 23:15 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2019-6538?
CVE-2019-6538 is a critical vulnerability published on March 25, 2019. The Conexus telemetry protocol utilized within Medtronic MyCareLink Monitor versions 24950 and 24952, CareLink Monitor version 2490C, CareLink 2090 Programmer, Amplia CRT-D, Claria CRT-D, Compia CRT-D, Concerto CRT-D, Concerto II CRT-D, Consulta CRT-D, Evera ICD, Maximo II CRT-D and ICD, Mirro ICD,…
When was CVE-2019-6538 disclosed?
CVE-2019-6538 was first published in the National Vulnerability Database on March 25, 2019, with the most recent update on May 22, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-6538 actively exploited?
CVE-2019-6538 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 42.0% of all scored CVEs.
What is the CVSS score of CVE-2019-6538?
CVE-2019-6538 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2019-6538?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-6538, 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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