# CVE-2019-6540: Medtronic Conexus Radio Frequency Telemetry Protocol Cleartext Transmission of Sensitive Information

> Attackers with short-range access can intercept unencrypted telemetry data from Medtronic cardiac devices, exposing sensitive patient information.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Mar 2019
- **Updated:** 22 May 2025
- **Also known as:** GHSA-r6ff-m2x2-m36p

## What is CVE-2019-6540?

CVE-2019-6540 is a medium-severity vulnerability in Medtronic Amplia CRT-D, published on 26 Mar 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official 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 encryption. An attacker with adjacent short-range access to a target product can listen to communications, including the transmission of sensitive data.

Weakness: CWE-319 (Cleartext Transmission of Sensitive Information)

## Which versions are affected by CVE-2019-6540?

It affects 23 products.


Products: Medtronic Amplia Crt-D Firmware, Medtronic Carelink 2090 Firmware, Medtronic Carelink Monitor 2490c Firmware, Medtronic Claria Crt-D Firmware, Medtronic Compia Crt-D Firmware, Medtronic Concerto Crt-D Firmware, Medtronic Concerto Ii Crt-D Firmware, Medtronic Consulta Crt-D Firmware, Medtronic Evera Icd Firmware, Medtronic Maximo Ii Crt-D Firmware, Medtronic Maximo Ii Icd Firmware, Medtronic Mirro Icd Firmware, Medtronic Mycarelink Monitor 24950 Firmware, Medtronic Mycarelink Monitor 24952 Firmware, Medtronic Nayamed Nd Icd Firmware, Medtronic Primo Icd Firmware, Medtronic Protecta Crt-D Firmware, Medtronic Protecta Icd Firmware, Medtronic Secura Icd Firmware, Medtronic Virtuoso Icd Firmware and 3 more.

## How do I fix CVE-2019-6540?

No fix has been published for CVE-2019-6540 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-6540 being exploited?

There is no known exploitation of CVE-2019-6540 in the wild and no public exploit code.

## Other vulnerabilities in Medtronic Amplia CRT-D

- [CVE-2019-6538](https://insights.sbomify.com/CVE-2019-6538/): Medtronic Conexus Radio Frequency Telemetry Protocol Improper Access Control (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-6540 and fix it if it is affected.

What it is: CVE-2019-6540 is a medium-severity vulnerability in Medtronic Amplia CRT-D, published on 26 Mar 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-6540 in the wild and no public exploit code.

Affected product: Medtronic Amplia CRT-D. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2019-6540/ (Markdown: https://insights.sbomify.com/CVE-2019-6540/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-6540
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-6540
- OSV: https://osv.dev/vulnerability/CVE-2019-6540

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-6540/
Summaries are generated and may contain mistakes; the official description above is the record.