Medtronic Conexus Radio Frequency Telemetry Protocol Cleartext Transmission of Sensitive Information
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 encryption. An attacker with adjacent short-range access to a target product can listen to communications, including the transmission of sensitive data.
- Published
- Mar 26, 2019
- Updated
- Jun 16, 2026
- EPSS
- 0.2% · 8th percentile
- CWE
- CWE-319
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Report tools
Action score
26
Monitor
Low priority for now.
- CVSS
- 26 / 40 · 6.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
CNA vs NVD score
- NVD
- 6.5
- CNA · icscert
- 6.5
- agree
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| medtronic | mycarelink monitor 24950 firmware | cpe:2.3:o:medtronic:mycarelink_monitor_24950_firmware |
| medtronic | mycarelink monitor 24950 | cpe:2.3:h:medtronic:mycarelink_monitor_24950 |
| medtronic | mycarelink monitor 24952 firmware | cpe:2.3:o:medtronic:mycarelink_monitor_24952_firmware |
| medtronic | mycarelink monitor 24952 | cpe:2.3:h:medtronic:mycarelink_monitor_24952 |
| medtronic | carelink monitor 2490c firmware | cpe:2.3:o:medtronic:carelink_monitor_2490c_firmware |
| medtronic | carelink monitor 2490c | cpe:2.3:h:medtronic:carelink_monitor_2490c |
| medtronic | carelink 2090 firmware | cpe:2.3:o:medtronic:carelink_2090_firmware |
| medtronic | carelink 2090 | cpe:2.3:h:medtronic:carelink_2090 |
| medtronic | amplia crt-d firmware | cpe:2.3:o:medtronic:amplia_crt-d_firmware |
| medtronic | amplia crt-d | cpe:2.3:h:medtronic:amplia_crt-d |
| medtronic | claria crt-d firmware | cpe:2.3:o:medtronic:claria_crt-d_firmware |
| medtronic | claria crt-d | cpe:2.3:h:medtronic:claria_crt-d |
and 34 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- medtronic amplia crt-d firmwareall versions
- medtronic carelink 2090 firmwareall versions
- medtronic carelink monitor 2490c firmwareall versions
- medtronic claria crt-d firmwareall versions
- medtronic compia crt-d firmwareall versions
- medtronic concerto crt-d firmwareall versions
- medtronic concerto ii crt-d firmwareall versions
- medtronic consulta crt-d firmwareall versions
- medtronic evera icd firmwareall versions
- medtronic maximo ii crt-d firmwareall versions
- medtronic maximo ii icd firmwareall versions
- medtronic mirro icd firmwareall versions
- medtronic mycarelink monitor 24950 firmwareall versions
- medtronic mycarelink monitor 24952 firmwareall versions
- medtronic nayamed nd icd firmwareall versions
- medtronic primo icd firmwareall versions
- medtronic protecta crt-d firmwareall versions
- medtronic protecta icd firmwareall versions
- medtronic secura icd firmwareall versions
- medtronic virtuoso icd firmwareall versions
Versions reported by the vendor
Affected version ranges reported by the assigning authority (icscert). Independent of NVD's CPE analysis and usually ahead of it.
Medtronic Amplia CRT-D
- All versionsaffected
Medtronic Brava CRT-D
- All versionsaffected
Medtronic CareLink 2090 Programmer
- All versionsaffected
Medtronic CareLink Monitor
- 2490Caffected
Medtronic Claria CRT-D
- All versionsaffected
Medtronic Compia CRT-D
- All versionsaffected
Medtronic Concerto CRT-D
- All versionsaffected
Medtronic Concerto II CRT-D
- All versionsaffected
Medtronic Conexus Radio Frequency Telemetry Protocol
- All versionsaffected
Medtronic Consulta CRT-D
- All versionsaffected
Medtronic Evera ICD
- All versionsaffected
Medtronic Maximo II CRT-D
- All versionsaffected
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
- Peter MorganClever Security; Dave Singelée and Bart Preneel of KU Leuven; Eduard Marin formerlyfinder
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone on the same network segment can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Adjacent
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-319 · Cleartext Transmission of Sensitive InformationCVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.