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TI-2021-08900 Aliases CVE-2021-27408GHSA-3c5f-pfff-9cjf

Out-of-bounds read in Welch Allyn medical device management tools

Priority LOW 36CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

The affected product is vulnerable to an out-of-bounds read, which can cause information leakage leading to arbitrary code execution if chained to the out-of-bounds write vulnerability 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).

Why it matters now

EPSS 0.01687 77th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Welch Allyn medical device management toolsWelch 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—No fix listedCNA
  • Welch Allyn medical device management tools Vendor— Affected 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 Fixed in — No fix listed CNA

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:a:hillrom:connex_central_station:*:*:*:*:*:*:*:*before 1.8.6VulnerableHillrom
cpe:2.3:a:hillrom:connex_device_integration_suite_network_connectivity_engine:*:*:*:*:*:*:*:*before 5.3VulnerableHillrom
cpe:2.3:a:hillrom:connex_integrated_wall_system:*:*:*:*:*:*:*:*before 2.43.02VulnerableHillrom
cpe:2.3:a:hillrom:connex_spot_monitor:*:*:*:*:*:*:*:*before 1.52VulnerableHillrom
cpe:2.3:a:hillrom:connex_vital_signs_monitor:*:*:*:*:*:*:*:*before 2.43.02VulnerableHillrom
cpe:2.3:a:hillrom:service_monitor:*:*:*:*:*:*:*:*before 1.7.0.0VulnerableHillrom
cpe:2.3:a:hillrom:service_tool:*:*:*:*:*:*:*:*before 1.10VulnerableHillrom
cpe:2.3:a:hillrom:software_development_kit:*:*:*:*:*:*:*:*before 3.2VulnerableHillrom
cpe:2.3:a:hillrom:spot_vital_signs_4400:*:*:*:*:-:*:*:*before 1.11.00VulnerableHillrom
cpe:2.3:a:hillrom:spot_vital_signs_4400:*:*:*:*:extended_care:*:*:*before 1.11.00VulnerableHillrom
  • cpe:2.3:a:hillrom:connex_central_station:*:*:*:*:*:*:*:* Versions before 1.8.6 Vulnerable ·Hillrom
  • cpe:2.3:a:hillrom:connex_device_integration_suite_network_connectivity_engine:*:*:*:*:*:*:*:* Versions before 5.3 Vulnerable ·Hillrom
  • cpe:2.3:a:hillrom:connex_integrated_wall_system:*:*:*:*:*:*:*:* Versions before 2.43.02 Vulnerable ·Hillrom
  • cpe:2.3:a:hillrom:connex_spot_monitor:*:*:*:*:*:*:*:* Versions before 1.52 Vulnerable ·Hillrom
  • cpe:2.3:a:hillrom:connex_vital_signs_monitor:*:*:*:*:*:*:*:* Versions before 2.43.02 Vulnerable ·Hillrom
  • cpe:2.3:a:hillrom:service_monitor:*:*:*:*:*:*:*:* Versions before 1.7.0.0 Vulnerable ·Hillrom
  • cpe:2.3:a:hillrom:service_tool:*:*:*:*:*:*:*:* Versions before 1.10 Vulnerable ·Hillrom
  • cpe:2.3:a:hillrom:software_development_kit:*:*:*:*:*:*:*:* Versions before 3.2 Vulnerable ·Hillrom
  • cpe:2.3:a:hillrom:spot_vital_signs_4400:*:*:*:*:-:*:*:* Versions before 1.11.00 Vulnerable ·Hillrom
  • cpe:2.3:a:hillrom:spot_vital_signs_4400:*:*:*:*:extended_care:*:*:* Versions before 1.11.00 Vulnerable ·Hillrom

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-27408
  2. 2026-10-03 Alias added: GHSA-3c5f-pfff-9cjf

References

Advisory 1

  • TI-2021-08901 Out-of-bounds write in Welch Allyn medical device management tools CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences