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Hmi 3 Control Panel FirmwareOperating system · Swisslog Healthcare

CVE-2021-37162

CRITICAL · 9.8 CVSS v3.1 Published 2021-08-02
Fix available
A fix is available. Upgrade to 7.2.5.7 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
A buffer overflow issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus Panel operated by released versions of software before Nexus Software 7.2.5.7. If an attacker sends a malformed UDP message, a buffer underflow occurs, leading to an out-of-bounds copy and possible remote code execution.

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

A buffer underflow vulnerability exists in the HMI3 Control Panel of Swisslog Healthcare Nexus Panel when processing malformed UDP messages. The underflow leads to an out-of-bounds memory copy, potentially allowing remote code execution. The issue affects versions of Nexus Software before 7.2.5.7.

MitigationUpgrade to Nexus Software 7.2.5.7 or later. If immediate patching is not feasible, implement network segmentation to restrict unauthorized access to the panel and deploy IDS/IPS monitoring for anomalous UDP traffic.

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
Hmi 3 Control Panel FirmwareOperating system
Affected:< 7.2.5.7

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 HMI3 Control Panel firmware version
    Access the Swisslog Healthcare Nexus Panel HMI3 web interface or system information page. Navigate to Settings > System > About or Firmware Information. Record the firmware version number displayed.
    Affected if The displayed firmware version is earlier than 7.2.5.7 (e.g., 7.2.5.6, 7.2.4.x, etc.)
  2. Verify UDP service is enabled and listening
    From a system with network access to the HMI3 panel, run 'netstat -an | grep UDP' or use a port scanner (e.g., nmap -sU -p 1024-65535 <panel_ip>) to check for open UDP ports on the panel device.
    Affected if The HMI3 panel has one or more UDP ports open and responding to traffic, indicating the vulnerable UDP message processing is active.
  3. Confirm network accessibility of the HMI3 panel
    Attempt to reach the HMI3 panel IP address on common UDP ports used by the service. Verify the panel is reachable from network segments that could contain untrusted users or systems.
    Affected if The HMI3 Control Panel UDP service is reachable from network segments outside of isolated/segmented management networks.
  4. Check for anomalous UDP traffic patterns
    Use packet capture (e.g., tcpdump or Wireshark) on the network segment servicing the HMI3 panel. Look for malformed UDP packets targeting the panel's IP address.
    Affected if Malformed or unexpected UDP packets directed at the panel are observed in network captures.

A system is affected if the HMI3 Control Panel firmware version is below 7.2.5.7 AND the UDP service processing HMI messages is network-accessible.

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 7.2.5.7 or later
Fixed in 7.2.5.7
Interim mitigation

Upgrade to Nexus Software 7.2.5.7 or later. If immediate patching is not feasible, implement network segmentation to restrict unauthorized access to the panel and deploy IDS/IPS monitoring for anomalous UDP traffic.

Recommended fix Moderate confidence

Nexus Software 7.2.5.7

  1. 1. Identify the current firmware version of the HMI3 Control Panel by accessing the device management interface
  2. 2. Navigate to the Swisslog Healthcare support portal or contact Swisslog Healthcare directly to obtain the Nexus Software 7.2.5.7 or later version
  3. 3. Follow Swisslog Healthcare's documented firmware upgrade procedure for the Nexus Panel
  4. 4. After upgrading, verify the new firmware version is 7.2.5.7 or higher
  5. 5. Test that the HMI3 Control Panel functions normally after the upgrade

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

Fix this in Hmi 3 Control Panel Firmware Scoped from the published advisory
  • Consultation8.0 h
  • Implementation4.0 h
  • Testing8.0 h
  • Review / QA4.0 h
24.0 hours of engineering $4,240
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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-2021-37162 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • 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