CVE-2021-4479
MediumCVSS 4.0Exploitation Probability (EPSS)
Low risk16th percentile - higher than 16% of all known CVEs
Summary
Dräger Atlan A350 versions 1.00 up to and including 1.01 contains an improper input handling vulnerability that allows attackers to cause a denial of service by sending specifically crafted non-Medibus-compliant data through the Medibus interface. Attackers can transmit malformed data to overload the internal processor.
Risk Assessment
This vulnerability may lead to disruption of device operation over several hours, resulting in loss of data transmission and delayed display of real-time curves. It may also cause deviation between displayed airway pressure values and screen curves.
Recommendation
It is recommended to update the device to the latest software version to mitigate this vulnerability and to monitor traffic through the Medibus interface for potential attacks.
Original NVD description (English source)
Dräger Atlan A350 versions 1.00 up to and including 1.01 contains an improper input handling vulnerability that allows attackers to cause a denial of service by sending specifically crafted non-Medibus-compliant data through the Medibus interface. Attackers can transmit malformed data to overload the internal processor, gradually disrupting device operation over several hours and causing loss of data transmission, delayed display of real-time curves, and deviation between displayed airway pressure values and screen curves.