CVE-2021-4479 PUBLISHED

Dräger Atlan A350 1.00-1.01 DoS via Medibus Interface

Assigner: VulnCheck
Reserved: 02.06.2026 Published: 02.06.2026 Updated: 03.06.2026

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.

Metrics

CVSS Vector: 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
CVSS Score: 6.3

Product Status

Vendor Dräger
Product Atlan A350
Versions Default: unknown
  • affected from 1.00 to 7.5.3 (excl.)
  • Version 1.01 is affected
  • Version 2.0 is unaffected

References

Problem Types

  • CWE-1286 Improper Validation of Syntactic Correctness of Input CWE