What’s Vulnerable › Vulnerabilities

CVE-2020-27252: Medtronic MyCareLink Smart Time-of-check Time-of-use Race Condition

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-14 · updated 2026-06-17
• Weakness: CWE-367

Description

Medtronic MyCareLink Smart 25000 is vulnerable to a race condition in the MCL Smart Patient Reader software update system, which allows unsigned firmware to be uploaded and executed on the Patient Reader. If exploited, an attacker could remotely execute code on the MCL Smart Patient Reader device, leading to control of the device.

Affected products

• Medtronic Smart Model 25000 Patient Reader: all versions

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
• https://us-cert.cisa.gov/ics/advisories/icsma-20-345-01

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