CVE-2021-27408

HIGH

7.5

CVSS Score

Published: June 11, 2021 at 04:31 PM UTC

Updated: June 17, 2026 at 03:44 AM UTC

10 products affected across 1 vendorService ToolConnex Central StationConnex Integrated Wall System

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Severity

HIGH7.5

Exploit prediction

EPSS 2%

Description

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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Connex Central Station · Hillrom

95%

v < 1.8.6

Affected range stops below 1.8.6, so it looks safe — our inference, not a vendor statement

Connex Device Integration Suite Network Connectivity Engine · Hillrom

95%

v < 1.10v < 5.3

Affected range stops below 1.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.3, so it looks safe — our inference, not a vendor statement

Connex Integrated Wall System · Hillrom

95%

v < 2.43.02

Affected range stops below 2.43.02, so it looks safe — our inference, not a vendor statement

Connex Spot Monitor · Hillrom

95%

v < 1.52

Affected range stops below 1.52, so it looks safe — our inference, not a vendor statement

Connex Vital Signs Monitor · Hillrom

95%

v < 2.43.02

Affected range stops below 2.43.02, so it looks safe — our inference, not a vendor statement

Service Monitor · Hillrom

95%

v < 1.7.0.0

Affected range stops below 1.7.0.0, so it looks safe — our inference, not a vendor statement

Service Tool · Hillrom

95%

v < 1.10

Affected range stops below 1.10, so it looks safe — our inference, not a vendor statement

Software Development Kit · Hillrom

95%

v < 3.2

Affected range stops below 3.2, so it looks safe — our inference, not a vendor statement

Spot Vital Signs 4400 · Hillrom

95%

v < 1.11.00

Affected range stops below 1.11.00, so it looks safe — our inference, not a vendor statement

Welch Allyn Service Tool · Hillrom

50%

v < 1.10

Affected range stops below 1.10, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://us-cert.cisa.gov/ics/advisories/icsma-21-152-01

References (1)

x_refsource_MISCMitigationThird Party AdvisoryUS Government Resource

Source: [email protected]

https://us-cert.cisa.gov/ics/advisories/icsma-21-152-01

CVSS

7.5HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-125

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