Security readout for executives and security teams
Plain-English summary
This issue concerns Medtronic MyCareLink patient monitors that contain debug functionality. If an attacker gets physical access to a monitor and meets other constraints, that functionality could interact with an implantable cardiac device at close range. The risk is not broad remote compromise, but it is safety-relevant in healthcare environments.
Executive priority
Treat this as a moderate, clinically sensitive risk. It does not indicate internet-scale urgency or confirmed exploitation, but affected monitors should be inventoried and physically controlled. Escalate through medical device governance rather than general IT patch queues alone.
Technical view
CVE-2018-8868 is CWE-749 in Medtronic 24950 and 24952 MyCareLink Monitor, all versions. Debug code can read and write arbitrary memory values to implantable cardiac devices over inductive or short-range wireless protocols. CVSS 3.1 is 6.2 with physical attack vector, high complexity, low privileges, and changed scope.
Likely exposure
Exposure is limited to organizations using Medtronic 24950 or 24952 MyCareLink Monitor devices. The source bundle lists all versions as affected. Exploitation requires physical access to the monitor and close proximity to a target implantable cardiac device, which narrows practical risk but does not remove clinical concern.
Exploitation context
The source bundle does not show KEV listing or cited evidence of active exploitation. It states an attacker must first exploit other vulnerabilities to access debug functionality, then be close to the implantable cardiac device. That combination makes opportunistic exploitation unlikely, but targeted physical scenarios remain relevant.
Researcher notes
Evidence is limited to the CVE description and referenced advisories in the provided bundle. Do not assume a software patch, field correction, or exploit availability from this data alone. Key constraints are physical access, high complexity, low privileges, and dependence on other vulnerabilities.
Mitigation direction
- Inventory Medtronic 24950 and 24952 MyCareLink Monitor deployments.
- Restrict physical access to monitors and patient-care areas where they are used.
- Review Medtronic and CISA guidance for official remediation or compensating controls.
- Coordinate clinical risk decisions with biomedical engineering and cardiology stakeholders.
- Monitor vendor security bulletins for lifecycle, replacement, or configuration guidance.
Validation and detection
- Confirm whether 24950 or 24952 monitors are present in asset records.
- Verify physical access controls around monitor storage and use locations.
- Check whether local procedures prevent unattended or unauthorized monitor handling.
- Review vendor advisories for any site-specific remediation requirements.
- Document residual risk where affected monitors remain in service.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CWE-749: Exact CWE lookup
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Open ATT&CK lookupCVE-2018-8868 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L0.45.3Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.2MediumVector: CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Exposed Dangerous Method or Function
Exposed Dangerous Method or Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.