Security readout for executives and security teams
Plain-English summary
This flaw can make a Dräger Perseus A500 anesthesia workstation restart when malformed data reaches its Medibus interface. During the restart, ventilation pressure can drop to ambient level and ventilation can pause for several seconds before therapy resumes. The business concern is patient-care disruption, not data theft.
Executive priority
Prioritize clinical inventory and exposure reduction in operating-room or anesthesia environments. This is not reported as actively exploited, but the patient-care consequence makes validation important.
Technical view
CVE-2019-25723 is improper input handling in Dräger Perseus A500 software 2.00 through 2.02, with source data also listing 2.03. Crafted non-Medibus-compliant data sent through the Medibus interface can overload the internal processor and trigger a warm restart, causing temporary ventilation interruption. CVSS v4.0 score is 6.3.
Likely exposure
Exposure is most likely in clinical environments running affected Perseus A500 systems where the Medibus interface is connected and reachable by untrusted or insufficiently controlled devices or networks.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The issue is remotely reachable per the CVSS vector, but attack complexity is high and impact is availability-focused.
Researcher notes
There is a version inconsistency in the supplied bundle: the description says 2.00 through 2.02, while the affected list includes 2.03. Treat 2.03 as needing vendor confirmation before excluding it.
Mitigation direction
- Review the Dräger advisory for supported remediation guidance.
- Confirm affected software versions with biomedical engineering or Dräger support.
- Restrict untrusted access to the Medibus interface.
- Segment clinical device networks from general-purpose networks.
- Monitor for unexpected warm restarts or ventilation interruptions.
Validation and detection
- Inventory Perseus A500 devices and installed software versions.
- Identify whether the Medibus interface is enabled and connected.
- Map systems or networks that can reach the Medibus interface.
- Check device logs or clinical reports for unexplained warm restarts.
- Verify remediation status against Dräger guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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Open ATT&CK lookupCVE-2019-25723 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.3 (4.0)
- Known Exploited
- No
- Published
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
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
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——VulnCheckCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L2.21.4VulnCheckVulnerability scoring details
Base CVSS 4.0 score
6.3MediumVector: 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
Base CVSS 3.1 score
4MediumVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://static.draeger.com/security/download/2020-06-PSA-20-169-01-Security-Advisory-Perseus-A500-SW20n.pdfCVE reference, VulnCheck · vendor-advisory
- https://www.vulncheck.com/advisories/dr-ger-perseus-a500-dos-via-medibus-interfaceCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Validation of Syntactic Correctness of Input
Improper Validation of Syntactic Correctness of Input represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.