CVE-2020-27252
Medtronic MyCareLink Smart Time-of-check Time-of-use Race Condition
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.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Medtronic MyCareLink Smart Time-of-check Time-of-use Race Condition
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.
- Record
CVE-2020-27252- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-367
- Updated
- 2026-11-02
EUVDEUVD-2020-19765
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.
- Record
EUVD-2020-19765- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-qmhj-wg3r-x2h5
Medtronic MyCareLink Smart 25000 all versions are vulnerable to a race condition in the MCL Smart...
Medtronic MyCareLink Smart 25000 all versions are 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.
- Record
GHSA-qmhj-wg3r-x2h5- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-367
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2020-27252- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H - CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 9.3 High
AV:N/AC:M/Au:N/C:C/I:C/A:C - Weakness
- CWE-367
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-27252 is a high vulnerability (CVSS 8.8) in Medtronic Mycarelink Smart Model 25000 Firmware, published December 14, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.84%, the 90th percentile. No source names a fixed version.