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CVE Record

CVE-2021-37165: A buffer overflow issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus Panel operated by...

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. When a message is sent to the HMI TCP socket, it is forwarded to the hmiProcessMsg function through the pendingQ, and may lead to remote code execution.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This vulnerability affects Swisslog Healthcare Nexus Panel systems used in healthcare environments. A network message to the HMI TCP socket can trigger a buffer overflow that may allow remote code execution. The business concern is disruption or compromise of operational healthcare infrastructure, especially where affected panels are reachable from broader internal networks.

Executive priority

Treat this as a high-priority healthcare operational technology risk if Swisslog Nexus Panel is deployed. Focus first on asset discovery, version confirmation, and vendor-guided remediation because the public bundle lacks CVSS scoring and detailed deployment indicators.

Technical view

CVE-2021-37165 is a buffer overflow in the HMI3 Control Panel hmiProcessMsg path. Messages sent to the HMI TCP socket are forwarded through pendingQ into hmiProcessMsg, where released Nexus Software versions before 7.2.5.7 may permit remote code execution.

Likely exposure

Exposure is likely limited to organizations running Swisslog Healthcare Nexus Panel with HMI3 Control Panel on Nexus Software versions before 7.2.5.7. The bundle does not provide CPEs, exact deployment patterns, or network port details.

Exploitation context

The source bundle supports potential remote code execution, but does not show active exploitation. CISA KEV is false for this CVE. Armis' PwnedPiper page is cited as research context, not evidence of current exploitation.

Researcher notes

Evidence is strongest for the vulnerable code path and affected version boundary. Evidence is incomplete for CVSS, CWE mapping, CPEs, port identifiers, exploit maturity, and compensating controls. Avoid assuming exposure without confirming local product version and network reachability.

Mitigation direction

  • Identify Swisslog Healthcare Nexus Panel deployments using HMI3 Control Panel.
  • Confirm Nexus Software version and prioritize systems before 7.2.5.7.
  • Review the Swisslog CVE bulletin for vendor-approved remediation steps.
  • Restrict HMI TCP socket reachability to trusted management or operational segments.
  • Coordinate changes with clinical engineering and vendor support before production updates.

Validation and detection

  • Inventory Nexus Panel assets and record software versions.
  • Confirm whether HMI TCP services are reachable beyond required operational networks.
  • Check vendor documentation for fixed versions and residual configuration requirements.
  • Review network segmentation rules protecting Swisslog Healthcare systems.
  • Monitor vendor advisories for any updated severity, fixes, or exploitation notes.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2021-37165 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.