{"id":"CVE-2019-6538","aliases":["EUVD-2019-16097","GHSA-56wm-53rq-h4x6"],"status":"published","title":"Medtronic Conexus Radio Frequency Telemetry Protocol Improper Access Control","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.","severity":{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00895,"percentile":0.59779,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-284","CWE-306","CWE-862"],"published":"2019-03-25T21:26:03Z","modified":"2026-06-17T02:39:12Z","products":[{"vendor":"medtronic","product":"amplia crt-d"},{"vendor":"medtronic","product":"amplia_crt-d_firmware"},{"vendor":"medtronic","product":"brava crt-d"},{"vendor":"medtronic","product":"carelink 2090 programmer"},{"vendor":"medtronic","product":"carelink monitor"},{"vendor":"medtronic","product":"carelink_2090_firmware"},{"vendor":"medtronic","product":"carelink_monitor_firmware"},{"vendor":"medtronic","product":"claria crt-d"},{"vendor":"medtronic","product":"claria_crt-d_firmware"},{"vendor":"medtronic","product":"compia crt-d"},{"vendor":"medtronic","product":"compia_crt-d_firmware"},{"vendor":"medtronic","product":"concerto crt-d"},{"vendor":"medtronic","product":"concerto ii crt-d"},{"vendor":"medtronic","product":"concerto_crt-d_firmware"},{"vendor":"medtronic","product":"concerto_ii_crt-d_firmware"},{"vendor":"medtronic","product":"conexus radio frequency telemetry protocol"},{"vendor":"medtronic","product":"consulta crt-d"},{"vendor":"medtronic","product":"consulta_crt-d_firmware"},{"vendor":"medtronic","product":"evera icd"},{"vendor":"medtronic","product":"evera_icd_firmware"},{"vendor":"medtronic","product":"maximo ii crt-d"},{"vendor":"medtronic","product":"maximo ii icd"},{"vendor":"medtronic","product":"maximo_ii_crt-d_and_lcd_firmware"},{"vendor":"medtronic","product":"mirro icd"},{"vendor":"medtronic","product":"mirro mri icd"},{"vendor":"medtronic","product":"mirro_icd_firmware"},{"vendor":"medtronic","product":"mycarelink monitor"},{"vendor":"medtronic","product":"mycarelink_monitor_firmware"},{"vendor":"medtronic","product":"nayamed nd icd"},{"vendor":"medtronic","product":"nayamed_nd_icd_firmware"},{"vendor":"medtronic","product":"primo icd"},{"vendor":"medtronic","product":"primo_icd_firmware"},{"vendor":"medtronic","product":"protecta icd, protecta crt-d"},{"vendor":"medtronic","product":"protecta_icd_and_crt-d_firmware"},{"vendor":"medtronic","product":"secura icd"},{"vendor":"medtronic","product":"secura_icd_firmware"},{"vendor":"medtronic","product":"virtuoso icd"},{"vendor":"medtronic","product":"virtuoso ii icd"},{"vendor":"medtronic","product":"virtuoso_icd_firmware"},{"vendor":"medtronic","product":"virtuoso_ii_icd_firmware"},{"vendor":"medtronic","product":"visia af icd"},{"vendor":"medtronic","product":"visia_af_icd_firmware"},{"vendor":"medtronic","product":"viva crt-d"},{"vendor":"medtronic","product":"viva_crt-d_firmware"}],"references":[{"url":"https://ics-cert.us-cert.gov/advisories/ICSMA-19-080-01","tags":["x_refsource_MISC","x_refsource_CONFIRM","x_transferred","Mitigation","Third Party Advisory","US Government Resource"]},{"url":"http://www.securityfocus.com/bid/107544","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-6538"},{"url":"https://github.com/advisories/GHSA-56wm-53rq-h4x6"}],"sources":{"cve":[{"id":"CVE-2019-6538","title":"Medtronic Conexus Radio Frequency Telemetry Protocol Improper Access Control","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.","status":"published","published":"2019-03-25T21:26:03Z","modified":"2025-05-22T19:26:15.126Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:20:23.697579Z"}],"euvd":[{"id":"EUVD-2019-16097","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.","status":"published","published":"2019-03-25T21:26:03Z","modified":"2025-05-22T19:26:15Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T20:32:39.383071Z"}],"ghsa":[{"id":"GHSA-56wm-53rq-h4x6","title":"The Conexus telemetry protocol utilized within Medtronic MyCareLink Monitor versions 24950 and...","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.","status":"published","published":"2022-05-13T01:14:52Z","modified":"2025-05-22T21:30:31Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-284","CWE-306"],"updated_at":"2026-11-02T15:02:24.698205Z"}],"nvd":[{"id":"CVE-2019-6538","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.","status":"published","published":"2019-03-25T22:29:00.763Z","modified":"2026-06-17T02:39:12.98Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.3,"vector":"AV:A/AC:L/Au:N/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-284","CWE-306","CWE-862"],"updated_at":"2026-11-02T14:05:09.523883Z"}]}}