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.
Published: 2026-06-02
Score: 6.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability stems from improper input handling in firmware 1.00 through 1.01 of Dräger Atlan A350. Attackers can send specially crafted non‑Medibus‑compliant data via the Medibus interface, which over‑loads the internal processor. This overload can gradually disrupt device operation over several hours, leading to loss of data transmission, delayed real‑time displays, and a mismatch between displayed airway pressure values and screen curves.

Affected Systems

Affected computers are Dräger Atlan A350 devices running firmware 1.00 or 1.01. The vulnerability is limited to the Medibus interface and thus impacts only these devices.

Risk and Exploitability

The CVSS score of 6.3 indicates a moderate severity level. The EPSS score of 0.00051 (below 1%) indicates a very low exploitation probability. The vulnerability is not listed in CISA KEV. The likely attack vector is via the Medibus interface, meaning an adversary must have access to that interface—either serial, network, or physical—to send the malicious data. Because the exploit causes a gradual crash, detection may be delayed, extending downtime for potentially many hours.

Generated by OpenCVE AI on June 10, 2026 at 18:35 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the latest Dräger Atlan A350 firmware patch that addresses the improper input handling flaw described in the advisory.
  • Restrict or disable physical or network access to the Medibus interface to prevent unauthorized data injection.
  • Ensure that the device firmware validates all Medibus messages against the protocol specification, mitigating the input validation weakness identified by CWE‑1286.

Generated by OpenCVE AI on June 10, 2026 at 18:35 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 10 Jun 2026 17:30:00 +0000


Wed, 10 Jun 2026 17:00:00 +0000


Wed, 10 Jun 2026 16:00:00 +0000

Type Values Removed Values Added
Description 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. 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.
Title Dräger Atlan A350 1.00-1.01 DoS via Medibus Interface Dräger Atlan A350 1.00 <= 1.01 DoS via Medibus Interface

Wed, 03 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
References

Wed, 03 Jun 2026 19:00:00 +0000


Wed, 03 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 03 Jun 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Draeger
Draeger atlan A350
Vendors & Products Draeger
Draeger atlan A350

Wed, 03 Jun 2026 02:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Dräger Atlan A350 1.00-1.01 DoS via Medibus Interface
Weaknesses CWE-1286
References
Metrics cvssV3_1

{'score': 4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L'}

cvssV4_0

{'score': 6.3, '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'}


Subscriptions

Draeger Atlan A350
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-06-10T15:59:05.558Z

Reserved: 2026-06-02T19:20:57.660Z

Link: CVE-2021-4479

cve-icon Vulnrichment

Updated: 2026-06-03T12:50:34.005Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-02T20:16:28.383

Modified: 2026-06-10T17:16:28.640

Link: CVE-2021-4479

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-10T18:45:22Z

Weaknesses
  • CWE-1286

    Improper Validation of Syntactic Correctness of Input