CVE-2021-4479
MEDIUM EPSS 15.1%
Published Jun 2, 20261mo ago · Modified Jun 17, 20262w ago
6.3 CVSS 4.0
Published Jun 2, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
Description
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
15.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-1286
References 2
- static.draeger.com https://static.draeger.com/security/download/2021-05-04-PSA-21-124-1-Security-Advisory-Atlan.pdf
- vulncheck.com https://www.vulncheck.com/advisories/drager-atlan-a350-dos-via-medibus-interface
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.