CVE-2019-25723 Dräger Perseus A500 2.00-2.02 DoS via Medibus Interface
External attackers can cause a denial of service on Dräger Perseus A500 ventilators by sending malformed data, interrupting ventilation therapy.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-25723?
CVE-2019-25723 is a medium-severity denial of service vulnerability in Dräger Perseus A500, published on 2 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-1286
Which versions are affected by CVE-2019-25723?
How do I fix CVE-2019-25723?
No fix has been published for CVE-2019-25723 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-25723 being exploited?
There is no known exploitation of CVE-2019-25723 in the wild and no public exploit code.
Sources
Also known as GHSA-9p7r-jmp9-7hw2.