CVE-2025-24836 represents a medium-severity vulnerability associated with the Qardio Heart Health application. This vulnerability allows attackers to exploit unencrypted Bluetooth connections, potentially leading to a denial-of-service condition. Attackers may leverage this weakness to disrupt the connection between the device and a clinician's application, impeding critical patient monitoring.
The vulnerability has received a CVSS score of 6.1, indicating a medium level of severity. The attack vector is classified as adjacent, requiring proximity to the target device. The high complexity of the attack and the absence of required privileges further complicate the exploitation process. Organizations relying on the affected application should be particularly vigilant, as the risk to patient care is significant.
With the exploitation status being deferred, there is currently no public exploit or proof of concept available. However, organizations should prioritize awareness of the issue and consider potential mitigation strategies. As the threat landscape evolves, the urgency for defenders to assess their exposures increases.
Organizations should prioritize patching immediately to address this vulnerability and prevent any disruptions that could impact the clinician's ability to monitor patient readings effectively.
Vulnerability Details
With a specially crafted Python script, an attacker could send continuous startMeasurement commands over an unencrypted Bluetooth connection to the affected device. This would prevent the device from connecting to a clinician's app to take patient readings and ostensibly flood it with requests, resulting in a denial-of-service condition.
The vulnerability is classified under CWE-248 and has been published on February 13, 2025. The CVSS base score of 6.1 reflects medium severity, with a high attack complexity, indicating that it is not trivial for an attacker to successfully exploit this vulnerability.
Technical Analysis
The root cause of this vulnerability stems from the use of unencrypted Bluetooth protocols, allowing attackers within proximity to send malicious commands. The attack vector is classified as adjacent, requiring the attacker to be in close range of the target device. The attack complexity is rated as high, meaning that successful exploitation requires specific conditions to be met, which may include the use of custom scripts.
In terms of impact, successful exploitation of the vulnerability can lead to significant availability issues, as the device may become unresponsive to legitimate requests. The integrity and confidentiality impacts are rated high and low, respectively, meaning that while data integrity may be compromised, the overall confidentiality of the system is less affected.
Risk & Impact Analysis
Risk to organizations includes the potential disruption in healthcare services, particularly those relying on the Qardio Heart Health application for patient monitoring. The blast radius could affect multiple patients if the device is widely used within healthcare settings. Given the medium CVSS score, organizations should address this vulnerability in their priority patch cycle.
The urgency for remediation is moderate, and organizations should schedule remediation as part of their security management practices. Regular reviews of system configurations and monitoring for anomalous behavior can help mitigate the risks associated with this vulnerability.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch.
Mitigation & Remediation
Organizations should ensure that they are running the latest version of the Qardio Heart Health application, as updates may contain important security patches addressing this vulnerability. If a patch is unavailable, consider implementing network controls to limit Bluetooth connections to trusted devices only.
Additionally, organizations may benefit from conducting a thorough security assessment to identify other potential vulnerabilities in their systems. Implementing continuous penetration testing can help to proactively discover and remediate weaknesses before they can be exploited.
Regularly scheduled penetration testing can assist in uncovering flaws that require attention.
Detection Guidance
Monitor logs for abnormal Bluetooth connection attempts, especially those that appear to flood the device with requests. Behavioral anomalies such as unresponsive devices or unusual patterns of communication can also indicate attempts to exploit this vulnerability.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-24836 lies in the increasing reliance on medical devices that utilize Bluetooth for communication. As attackers become more sophisticated, vulnerabilities like this one highlight the importance of securing wireless communications in healthcare applications.
Organizations should take this incident as a lesson to continually assess their security posture and implement robust security frameworks. Strategic defensive takeaways include ensuring that communication channels are encrypted and regularly reviewing software for vulnerabilities.
A well-designed vulnerability management program can aid in systematically addressing such risks.
Penetration testing methodology should be employed to anticipate potential vulnerabilities before they can be exploited.
Implementing AI security best practices can also contribute to enhancing the security of systems against emerging threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)