CVE-2025-24836
📋 TL;DR
This vulnerability allows attackers to send continuous startMeasurement commands via unencrypted Bluetooth to affected medical devices, causing denial-of-service by preventing legitimate clinician connections. It affects Qardio medical devices used for patient monitoring.
💻 Affected Systems
- Qardio medical monitoring devices
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Critical medical devices become unavailable for patient monitoring during medical emergencies, potentially delaying care.
Likely Case
Temporary disruption of device functionality requiring device restart and re-pairing.
If Mitigated
Minimal impact with proper network segmentation and Bluetooth security controls.
🎯 Exploit Status
Requires attacker to be within Bluetooth range and craft specific Python scripts.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in advisory - contact vendor
Vendor Advisory: https://www.qardio.com/about-us/#contact
Restart Required: No
Instructions:
1. Contact Qardio support for firmware updates. 2. Apply firmware patches as provided by vendor. 3. Verify Bluetooth functionality post-update.
🔧 Temporary Workarounds
Disable Bluetooth when not in use
allTurn off Bluetooth on devices when not actively monitoring patients
Device-specific - consult user manual
Implement Bluetooth pairing restrictions
allConfigure devices to only pair with authorized clinician devices
Device-specific - consult user manual
🧯 If You Can't Patch
- Physically isolate devices in secure areas to limit Bluetooth range
- Implement strict device usage policies requiring Bluetooth disablement between monitoring sessions
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against vendor's patched versionsCheck Version:
Device-specific - consult vendor documentationVerify Fix Applied:
Test Bluetooth connectivity with legitimate devices and attempt to reproduce DoS condition📡 Detection & Monitoring
Log Indicators:
- Multiple failed connection attempts
- Unusual Bluetooth pairing requests
- Device restart events
Network Indicators:
- Excessive Bluetooth traffic from unknown MAC addresses
- Repeated startMeasurement commands
SIEM Query:
bluetooth AND (startMeasurement OR connection_failed) WITH count > threshold