What is CVE-2021-4479?

CVE-2021-4479 is a medium-severity vulnerability in Dräger Atlan A350, classified under CWE-1286. CVSS score: 4.0/10. Published 2026-06-02.

How severe is CVE-2021-4479?

Medium severity. CVSS v3 base score is 4.0 out of 10.

Vulnerability in Dräger Atlan A350

CVE-2021-4479

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.

EPSS: 0.002 (15.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L.

Affected products

Dräger Atlan A350 — versions 2.0, 1.00, 0

Weakness classification (CWE)

CWE-1286

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com
disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2021-4479?: CVE-2021-4479 is a medium-severity vulnerability in Dräger Atlan A350, classified under CWE-1286. CVSS score: 4.0/10. Published 2026-06-02.
How severe is CVE-2021-4479?: Medium severity. CVSS v3 base score is 4.0 out of 10.