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Description

Dräger Perseus A500 software versions 2.00 through 2.02 contains an improper input handling vulnerability that allows external attackers to cause a denial of service by sending specifically crafted non-Medibus-compliant data through the Medibus interface. Attackers can overload the internal processor with malformed data to trigger a warm restart, causing ventilation pressure to drop to ambient level and interrupting ventilation for several seconds before therapy resumes.

PUBLISHED Reserved 2026-06-02 | Published 2026-06-02 | Updated 2026-06-03 | Assigner VulnCheck




MEDIUM: 6.3CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L

MEDIUM: 4.0CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L

Problem types

CWE-1286 Improper Validation of Syntactic Correctness of Input

Product status

Default status
unknown

2.00 (custom)
affected

2.01 (custom)
affected

2.02 (custom)
affected

2.03 (custom)
unaffected

References

static.draeger.com/...curity-Advisory-Perseus-A500-SW20n.pdf vendor-advisory

www.vulncheck.com/...-perseus-a500-dos-via-medibus-interface third-party-advisory

cve.org (CVE-2019-25723)

nvd.nist.gov (CVE-2019-25723)

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