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CVE-2021-4479— Dräger Atlan A350 1.00-1.01 DoS via Medibus Interface

CVSS 4.0 · Medium

Affected Version Matrix 3

VendorProductVersion RangeStatus
DrägerAtlan A3501.00< 7.5.3affected
1.01affected
2.0unaffected
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I. Basic Information for CVE-2021-4479

Vulnerability Information
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Vulnerability Title
Dräger Atlan A350 1.00-1.01 DoS via Medibus Interface
Source: NVD (National Vulnerability Database)
Vulnerability Description
Dräger Atlan A350 software versions 1.00 through 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1286
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
DrägerAtlan A350 1.00 ~ 7.5.3 -

II. Public POCs for CVE-2021-4479

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III. Intelligence Information for CVE-2021-4479

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Vendor Advisories for CVE-2021-4479 (1)

Same Patch Batch · Dräger · 2026-06-02 · 13 CVEs total

CVE-2019-257198.6 HIGHDräger Infinity M540 VG4.1.1 Spoofing and DoS via Network Message Handling
CVE-2022-49928.6 HIGHDräger Infinity M540 VG4.1.1 Spoofed Network Message Handling DoS/Tampering
CVE-2021-44788.2 HIGHDräger CC-Vision Basic and CC-Vision E-Cal Out-of-Bounds Write via Malicious GDT File
CVE-2021-44818.2 HIGHDräger Protector Software Local Privilege Escalation via Insecure File Permissions
CVE-2021-44808.2 HIGHDräger Protector Software Local Privilege Escalation via Insecure File Permissions
CVE-2019-257227.6 HIGHDräger SC Monitoring Devices Hard-coded Credentials and DoS
CVE-2024-140367.5 HIGHDräger Core 1.0.5 Denial of Service via Malformed SDC Message
CVE-2025-156536.8 MEDIUMDräger Zeus IE Anesthesia Workstation USB Interface Privilege Escalation
CVE-2019-257246.5 MEDIUMDräger Infinity M300 VG2.x Network-Based Denial of Service
CVE-2019-257216.5 MEDIUMDräger Infinity M300 VG2.3.1 Network-Based Denial of Service
CVE-2019-257174.3 MEDIUMDräger Infinity Delta/Kappa Patient Monitors Unauthenticated Log File Disclosure
CVE-2019-257234.0 MEDIUMDräger Perseus A500 2.00-2.02 DoS via Medibus Interface

IV. Related Vulnerabilities

Same vendor: Dräger
Same weakness: CWE-1286

V. Comments for CVE-2021-4479

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