TI-2021-03333 Aliases CVE-2021-4479 GHSA-744p-v485-p6h6

Dräger Atlan A350 1.00 <= 1.01 DoS via Medibus Interface

LOW 28CWE-1286Published 2026-06-02 · Updated 2026-06-10

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: None · None · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

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, 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00241 15th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Dräger	Atlan A350	1.00 – 1.01	—	No fix listed	CNA

Atlan A350 VendorDräger Affected 1.00 – 1.01 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-4479
2026-10-03 Alias added: GHSA-744p-v485-p6h6

References

Advisory 1

https://static.draeger.com/security/download/2021-05-04-PSA-21-124-1-Security-Advisory-Atlan.pdf

TI-2021-09347 Draeger X-Dock Firmware before 03.00.13 has Hard-Coded Credentials, leading to remote… CVSS 3.1HIGH 8.8
TI-2024-13029 Dräger Core 1.0.5 Denial of Service via Malformed SDC Message CVSS 4.0HIGH 8.7
TI-2022-04579 Dräger Infinity M540 VG4.1.1 Spoofed Network Message Handling DoS/Tampering CVSS 4.0HIGH 8.8
TI-2019-15770 Dräger Infinity M540 VG4.1.1 Spoofing and DoS via Network Message Handling CVSS 4.0HIGH 8.8
TI-2021-09348 Draeger X-Dock Firmware before 03.00.13 has Active Debug Code on a debug port, leading to… CVSS 3.1HIGH 8.8
TI-2019-15769 Dräger Infinity Explorer C700 Privilege Escalation via Kiosk Mode Bypass CVSS 4.0HIGH 8.6

See all 22 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences