What’s Vulnerable › Vulnerabilities

CVE-2025-4393: Medtronic MyCareLink Patient Monitor Deserialization Vulnerability

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-24 · updated 2026-06-17
• Weakness: CWE-502

Description

Medtronic MyCareLink Patient Monitor has an internal service that deserializes data, which allows a local attacker to interact with the service by crafting a binary payload to crash the service or elevate privileges. This issue affects MyCareLink Patient Monitor models 24950 and 24952: before June 25, 2025

Affected products

• Medtronic MyCareLink Patient Monitor 24950: before June 25, 2025 — fixed in 2025, June 25
• Medtronic MyCareLink Patient Monitor 24952: before June 25, 2025 — fixed in 2025, June 25

How to fix

Upgrade to a fixed version: Medtronic MyCareLink Patient Monitor 24950 2025, June 25; Medtronic MyCareLink Patient Monitor 24952 2025, June 25. Check the vendor advisory for mitigations.

References

• https://www.cisa.gov/news-events/ics-medical-advisories/icsma-25-205-01
• https://www.medtronic.com/en-us/e/product-security/security-bulletins/mycarelink-patient-monitor-vulnerabilities.html

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