CVE-2019-25721: Dräger Infinity M300 VG2.3.1 Network-Based Denial of Service
Dräger Infinity M300 patient worn monitors with software version VG2.3.1 and earlier contain a network-based denial of service vulnerability that allows network-adjacent attackers to repeatedly trigger device reboots by sending malicious requests over the Infinity Network. Attackers can exploit this vulnerability to force the device into a fail state requiring manual restart, causing loss of wireless connectivity and interruption of patient monitoring functionality.
Security readout for executives and security teams
Plain-English summary
Dräger Infinity M300 patient-worn monitors can be forced to reboot through malicious Infinity Network requests from a network-adjacent attacker. This can interrupt wireless patient monitoring until staff manually restart affected devices. The issue is high urgency in clinical environments using affected software.
Executive priority
Treat as high priority where affected monitors support active patient care. The main business risk is interruption of monitoring availability, not data theft, and remediation should be coordinated with clinical safety owners.
Technical view
CVE-2019-25721 is a CWE-400 denial-of-service flaw in Dräger Infinity M300 software VG2.3.1 and earlier. The CVSS 4.0 score is 7.1, with adjacent network access, low complexity, no privileges, and high availability impact.
Likely exposure
Exposure is limited to environments running Dräger Infinity M300 monitors with VG2.3.1 or earlier on reachable Infinity Network segments. Internet exposure is not indicated by the provided sources.
Exploitation context
The provided sources describe network-adjacent exploitation through malicious Infinity Network requests. CISA KEV status is false, and the bundle provides no evidence of active exploitation or public weaponization.
Researcher notes
Evidence supports an adjacent-network availability attack causing repeated reboots and a fail state requiring manual restart. The bundle does not provide exploit details, patch version confirmation, or active exploitation evidence, so validation should focus on asset/version exposure and vendor guidance.
Mitigation direction
Review Dräger advisory for supported update or mitigation guidance.
Inventory Infinity M300 software versions and prioritize VG2.3.1 or earlier.
Restrict Infinity Network access to trusted clinical and biomedical network segments.
Coordinate remediation windows with clinical operations before changing monitoring systems.
Validation and detection
Confirm whether Infinity M300 devices are present in the environment.
Record software versions for each identified Infinity M300 monitor.
Map which network segments can reach the Infinity Network.
Verify operational restart procedures for affected patient monitoring devices.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
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cwe · low confidence lookup
CWE-400: Exact CWE lookup
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CWE-400 · source CWE mapping
Uncontrolled Resource Consumption
Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.