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

Quick assessment

Affected
Dräger Atlan A350
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Dräger Atlan A350是德国Dräger公司的一款高端麻醉工作站。 Dräger Atlan A350 1.00版本至1.01版本存在安全漏洞，该漏洞源于输入处理不当，可能导致攻击者通过Medibus接口发送特制非Medibus兼容数据造成拒绝服务。

CVSS 4.0 · Medium EPSS 0.24% · P14

Affected Version Matrix 1

VendorProduct Version RangeStatus
Dräger Atlan A350 1.00≤ 1.01 affected
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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: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1286
Source: CVE Program / CVE List V5
Vulnerability Title
Dräger Atlan A350 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Dräger Atlan A350是德国Dräger公司的一款高端麻醉工作站。 Dräger Atlan A350 1.00版本至1.01版本存在安全漏洞，该漏洞源于输入处理不当，可能导致攻击者通过Medibus接口发送特制非Medibus兼容数据造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Dräger Atlan A350 1.00 ~ 1.01 -

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 (3)

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

CVE-2019-25719 8.6 HIGH Dräger Infinity M540 VG4.1.1 Spoofing and DoS via Network Message Handling
CVE-2022-4992 8.6 HIGH Dräger Infinity M540 VG4.1.1 Spoofed Network Message Handling DoS/Tampering
CVE-2021-4478 8.2 HIGH Dräger CC-Vision Basic and CC-Vision E-Cal Out-of-Bounds Write via Malicious GDT File
CVE-2021-4481 8.2 HIGH Dräger Protector Software Local Privilege Escalation via Insecure File Permissions
CVE-2021-4480 8.2 HIGH Dräger Protector Software Local Privilege Escalation via Insecure File Permissions
CVE-2019-25722 7.6 HIGH Dräger SC Monitoring Devices Hard-coded Credentials and DoS
CVE-2024-14036 7.5 HIGH Dräger Core 1.0.5 Denial of Service via Malformed SDC Message
CVE-2025-15653 6.8 MEDIUM Dräger Zeus IE Anesthesia Workstation USB Interface Privilege Escalation
CVE-2019-25724 6.5 MEDIUM Dräger Infinity M300 VG2.x Network-Based Denial of Service
CVE-2019-25721 6.5 MEDIUM Dräger Infinity M300 VG2.3.1 Network-Based Denial of Service
CVE-2019-25717 4.3 MEDIUM Dräger Infinity Delta/Kappa Patient Monitors Unauthenticated Log File Disclosure
CVE-2019-25723 4.0 MEDIUM Dräger 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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