{"id":"CVE-2019-6538","published":"2019-03-25T21:26:03Z","modified":"2025-05-22T19:26:15Z","title":"Medtronic Conexus Radio Frequency Telemetry Protocol Improper Access Control","vendor":"Medtronic","product":"Conexus Radio Frequency Telemetry Protocol","tier":"core","eol":null,"affectedVersions":[{"vendor":"Medtronic","product":"Conexus Radio Frequency Telemetry Protocol","versions":["All versions"]},{"vendor":"Medtronic","product":"MyCareLink Monitor","versions":["24950","24952"]},{"vendor":"Medtronic","product":"CareLink Monitor","versions":["2490C"]},{"vendor":"Medtronic","product":"CareLink 2090 Programmer","versions":["All versions"]},{"vendor":"Medtronic","product":"Amplia CRT-D","versions":["All versions"]},{"vendor":"Medtronic","product":"Claria CRT-D","versions":["All versions"]},{"vendor":"Medtronic","product":"Compia CRT-D","versions":["All versions"]},{"vendor":"Medtronic","product":"Concerto CRT-D","versions":["All versions"]},{"vendor":"Medtronic","product":"Concerto II CRT-D","versions":["All versions"]},{"vendor":"Medtronic","product":"Consulta CRT-D","versions":["All versions"]}],"description":{"text":"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.","provenance":"source","from":"CVE.org"},"summary":{"text":"The Conexus Radio Frequency Telemetry Protocol used across numerous Medtronic implantable cardiac devices and their associated monitors and programmers, including CareLink and MyCareLink products and a range of ICD and CRT-D models, does not implement authentication or authorization. An attacker with adjacent short-range access to an affected product, while its radio is enabled and without credentials or user interaction, can inject, replay, modify, or intercept telemetry data and use the protocol's memory read/write capability to alter memory in an implanted cardiac device.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:17:07Z"},"cvss":{"score":9.3,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.00895,"percentile":0.59411,"date":"2026-10-28","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":{"pulseCount":3,"pulses":[{"name":"Spam “Broken Seal” DocuSign-themed Delivery w/Fileless Process Hollowing (Zeppelin/Bloat-A) by msudosos","url":"https://otx.alienvault.com/pulse/69bf64eccb5d39a90a3c391e","created":"2026-03-22"},{"name":"Spam “Broken Seal” DocuSign-themed Delivery w/Fileless Process Hollowing (Zeppelin/Bloat-A) by msudosos","url":"https://otx.alienvault.com/pulse/69bf64e1d5e06aa6207f78de","created":"2026-03-22"},{"name":"“Broken Seal” DocuSign-themed Delivery with Fileless Process Hollowing (Zeppelin/Bloat-A)","url":"https://otx.alienvault.com/pulse/698e93e1ab02db8c49e8c3ed","created":"2026-02-13"}],"provenance":"machine"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"references":[{"url":"https://ics-cert.us-cert.gov/advisories/ICSMA-19-080-01","tags":["x_refsource_MISC"]},{"url":"http://www.securityfocus.com/bid/107544","tags":["vdb-entry","x_refsource_BID"]}],"techniques":[{"id":"T1005","name":"Data from Local System","tactics":["collection"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve"],"basisDetail":"CTID attack_to_cve (Phase 2)","mappingType":"primary_impact","evidence":[],"confidence":"high"},{"id":"T1499.004","name":"Application or System Exploitation","tactics":["impact"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve"],"basisDetail":"CTID attack_to_cve (Phase 2)","mappingType":"primary_impact","evidence":[],"confidence":"high"},{"id":"T1557","name":"Adversary-in-the-Middle","tactics":["collection","credential-access"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve"],"basisDetail":"CTID attack_to_cve (Phase 2)","mappingType":"primary_impact","evidence":[],"confidence":"high"},{"id":"T1574","name":"Hijack Execution Flow","tactics":["execution","stealth"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve"],"basisDetail":"CTID attack_to_cve (Phase 2)","mappingType":"primary_impact","evidence":[],"confidence":"high"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2019-16097","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-16097","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"primary","techniques":["T1574","T1557","T1005","T1499.004"],"provenance":"source"}],"timeline":[{"date":"2019-03-25","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2019-6538","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":19.8,"factors":[{"name":"In a KEV catalog","points":0.0,"detail":"not listed"},{"name":"Recent KEV listing","points":0.0,"detail":"not listed"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":11.88,"detail":"percentile 0.5941"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":1.37,"detail":"3 pulses"},{"name":"CVSS severity","points":6.51,"detail":"base score 9.3"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}