Vulnerability · Published Jun 2, 2026 · Assigned by VulnCheck

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

Medium 4.0

In plain English

A medium-severity security flaw in Atlan A350 from Dräger. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).

Severity (CVSS 3.1)4.0Medium

Exploit odds (30 days)0.2%top 84.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Dräger	Atlan A350	1.00 – through 1.01

Weakness: CWE-1286 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L

References

https://static.draeger.com/security/download/2021-05-04-PSA-21-124-1-Security-Advisory-Atlan.pdf vendor-advisory
https://www.vulncheck.com/advisories/drager-atlan-a350-dos-via-medibus-interface third-party-advisory