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Connex Central StationApplication · Hillrom

CVE-2021-27410

CRITICAL · 9.8 CVSS v3.1 Published 2021-06-11
Fix available
A fix is available. Upgrade to 1.7.0.0 / 1.8.6 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
The affected product is vulnerable to an out-of-bounds write, which may result in corruption of data or code execution on the Welch Allyn medical device management tools (Welch Allyn Service Tool: versions prior to v1.10, Welch Allyn Connex Device Integration Suite – Network Connectivity Engine (NCE): versions prior to v5.3, Welch Allyn Software Development Kit (SDK): versions prior to v3.2, Welch Allyn Connex Central Station (CS): versions prior to v1.8.6, Welch Allyn Service Monitor: versions prior to v1.7.0.0, Welch Allyn Connex Vital Signs Monitor (CVSM): versions prior to v2.43.02, Welch Allyn Connex Integrated Wall System (CIWS): versions prior to v2.43.02, Welch Allyn Connex Spot Monitor (CSM): versions prior to v1.52, Welch Allyn Spot Vital Signs 4400 Device (Spot 4400) / Welch Allyn Spot 4400 Vital Signs Extended Care Device: versions prior to v1.11.00).

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

An out-of-bounds write vulnerability exists in multiple Welch Allyn medical device management tools, allowing memory corruption that could enable arbitrary code execution or data corruption. The flaw affects network connectivity engines, device integration suites, monitoring software, and vital signs monitoring devices used in clinical settings.

MitigationUpdate all affected Welch Allyn products to the specified minimum versions (Service Tool v1.10, NCE v5.3, SDK v3.2, CS v1.8.6, Service Monitor v1.7.0.0, CVSM v2.43.02, CIWS v2.43.02, CSM v1.52, Spot 4400 v1.11.00) following manufacturer guidance, ensuring compliance with medical device change management procedures.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Connex Central StationApplication
Affected:< 1.8.6
Connex Device Integration Suite Network Connectivity EngineApplication
Affected:< 5.3
Connex Integrated Wall SystemApplication
Affected:< 2.43.02
Connex Spot MonitorApplication
Affected:< 1.52
Connex Vital Signs MonitorApplication
Affected:< 2.43.02
Service MonitorApplication
Affected:< 1.7.0.0
Service ToolApplication
Affected:< 1.10
Software Development KitApplication
Affected:< 3.2

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify deployed Hillrom products
    Inventory all Hillrom medical devices and software in the environment, including Connex Central Station, Device Integration Suite Network Connectivity Engine, Integrated Wall System, Spot Monitor, Vital Signs Monitor, Service Monitor, Service Tool, and Software Development Kit
    Affected if Any of the listed Hillrom products are deployed in the network
  2. Check Connex Central Station version
    Access the device system information menu or administrative interface and record the software version number
    Affected if Version is less than 1.8.6
  3. Check Device Integration Suite Network Connectivity Engine version
    Access the NCE administrative console or system configuration panel and locate the software version information
    Affected if Version is less than 5.3
  4. Check Service Tool and Service Monitor versions
    Open the Service Tool or Service Monitor application and navigate to About or System Information to retrieve the version number
    Affected if Service Tool version is less than 1.10 or Service Monitor version is less than 1.7.0.0
  5. Check Spot Monitor and Vital Signs Monitor versions
    Access the device settings menu or clinical interface to find the software version under device information or system status
    Affected if Connex Spot Monitor version is less than 1.52 or Connex Vital Signs Monitor version is less than 2.43.02
  6. Check Integrated Wall System and SDK versions
    For Integrated Wall System, access the system administration panel; for SDK, check the installed package version or assembly information
    Affected if Integrated Wall System version is less than 2.43.02 or SDK version is less than 3.2

The environment is affected if any Hillrom product listed has an installed version lower than the specified threshold (Central Station <1.8.6, NCE <5.3, Service Tool <1.10, Service Monitor <1.7.0.0, Spot Monitor <1.52, Vital Signs Monitor <2.43.02, Integrated Wall System <2.43.02, SDK <3.2).

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 1.7.0.0 / 1.8.6 / 1.10 or later
Fixed in 1.7.0.01.8.61.10
Interim mitigation

Update all affected Welch Allyn products to the specified minimum versions (Service Tool v1.10, NCE v5.3, SDK v3.2, CS v1.8.6, Service Monitor v1.7.0.0, CVSM v2.43.02, CIWS v2.43.02, CSM v1.52, Spot 4400 v1.11.00) following manufacturer guidance, ensuring compliance with medical device change management procedures.

Recommended fix High confidence

Upgrade to: Service Tool v1.10, NCE v5.3, SDK v3.2, Connex Central Station v1.8.6, Service Monitor v1.7.0.0, CVSM v2.43.02, CIWS v2.43.02, CSM v1.52, Spot 4400 v1.11.00

  1. 1. Identify the specific Welch Allyn product(s) in your environment from the affected list (Connex Central Station, Connex Device Integration Suite NCE, Connex Integrated Wall System, Connex Spot Monitor, Connex Vital Signs Monitor, Service Monitor, Service Tool, or SDK).
  2. 2. Determine the current installed version of each affected product.
  3. 3. Contact Welch Allyn technical support or visit their official support portal to obtain the fixed version software.
  4. 4. For Service Tool: upgrade to version 1.10 or later.
  5. 5. For Connex Device Integration Suite Network Connectivity Engine (NCE): upgrade to version 5.3 or later.
  6. 6. For Software Development Kit (SDK): upgrade to version 3.2 or later.
  7. 7. For Connex Central Station: upgrade to version 1.8.6 or later.
  8. 8. For Service Monitor: upgrade to version 1.7.0.0 or later.
Caveat Medical device software upgrades may require validation and testing in clinical environment; coordinate with Welch Allyn support for upgrade procedure

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Connex Central Station Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing10.0 h
  • Review / QA6.0 h
34.0 hours of engineering $5,940
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-27410 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data