CVE-2019-6538 - CVE House
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Status published Critical CVE-2019-6538

Medtronic Conexus Radio Frequency Telemetry Protocol Improper Access Control

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Peter Morgan of Clever Security; Dave Singelée and Bart Preneel of KU Leuven; Eduard Marin formerly of KU Leuven, currently with University of Birmingham; Flavio D. Garcia; Tom Chothia of the University of Birmingham; and Rik Willems of University Hospital Gasthuisberg Leuven reported these vulnerabilities to CISA.

Affected Vendor

Affected Software

Conexus Radio Frequency Telemetry Protocol, MyCareLink Monitor, CareLink Monitor, 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, Maximo II ICD, Mirro ICD, Nayamed ND ICD, Primo ICD, Protecta ICD, Protecta CRT-D, Secura ICD, Virtuoso ICD, Virtuoso II ICD, Visia AF ICD, Viva CRT-D, Brava CRT-D, Mirro MRI ICD
Vulnerable Versions:
All versions, 24950, 24952, 2490C

Timeline

Official Publish: March 25th, 2019
Last Modified: May 22nd, 2025
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H

Weaknesses (CWE)