CVE-2021-27408: The affected product is vulnerable to an out-of-bounds read, which can cause information leakage leading to ar

Q: How do I fix CVE-2021-27408?

connex central station: upgrade to 1.8.6; connex device integration suite network connectivity engine: upgrade to 5.3; connex integrated wall system: upgrade to 2.43.02. Exact commands for each OS are on this page.

Q: Is CVE-2021-27408 being exploited?

CVE-2021-27408 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-27408 affect?

CVE-2021-27408 affects connex central station, connex device integration suite network connectivity engine, connex integrated wall system. Severity is high (CVSS 7.5). 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 (Wel

Q: How urgent is CVE-2021-27408?

Priority 51/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADEUPGRADEUPGRADE

CVE-2021-27408 is a high-severity flaw (CVSS 7.5) affecting connex central station, connex device integration suite network connectivity engine, connex integrated wall system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 prio

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-125
Published	2021-06-11
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: hillrom

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-06-11 17:15 UTCPublished CVE record published
2026-06-17 03:44 UTCUpdated Record last modified

hillrom connex central station UPGRADE

Affected: < 1.8.6

Fixed in: 1.8.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy connex-central-station || rpm -q connex-central-station || connex-central-station --version

2. UPGRADE to 1.8.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade connex-central-station

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade connex-central-station

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

hillrom connex device integration suite network connectivity engine UPGRADE

Affected: < 5.3

Fixed in: 5.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy connex-device-integration-suite-network-connectivity-engine || rpm -q connex-device-integration-suite-network-connectivity-engine || connex-device-integration-suite-network-connectivity-engine --version

2. UPGRADE to 5.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade connex-device-integration-suite-network-connectivity-engine

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade connex-device-integration-suite-network-connectivity-engine

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

hillrom connex integrated wall system UPGRADE

Affected: < 2.43.02

Fixed in: 2.43.02

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy connex-integrated-wall-system || rpm -q connex-integrated-wall-system || connex-integrated-wall-system --version

2. UPGRADE to 2.43.02 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade connex-integrated-wall-system

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade connex-integrated-wall-system

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

hillrom connex spot monitor UPGRADE

Affected: < 1.52

Fixed in: 1.52

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy connex-spot-monitor || rpm -q connex-spot-monitor || connex-spot-monitor --version

2. UPGRADE to 1.52 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade connex-spot-monitor

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade connex-spot-monitor

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

hillrom connex vital signs monitor UPGRADE

Affected: < 2.43.02

Fixed in: 2.43.02

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy connex-vital-signs-monitor || rpm -q connex-vital-signs-monitor || connex-vital-signs-monitor --version

2. UPGRADE to 2.43.02 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade connex-vital-signs-monitor

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade connex-vital-signs-monitor

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

hillrom service monitor UPGRADE

Affected: < 1.7.0.0

Fixed in: 1.7.0.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy service-monitor || rpm -q service-monitor || service-monitor --version

2. UPGRADE to 1.7.0.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade service-monitor

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade service-monitor

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-27408?

connex central station: upgrade to 1.8.6; connex device integration suite network connectivity engine: upgrade to 5.3; connex integrated wall system: upgrade to 2.43.02. Exact commands for each OS are on this page.

Is CVE-2021-27408 being exploited?

CVE-2021-27408 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-27408 affect?

CVE-2021-27408 affects connex central station, connex device integration suite network connectivity engine, connex integrated wall system. Severity is high (CVSS 7.5). 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 (Wel

How urgent is CVE-2021-27408?

Priority 51/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-27410 CRITICAL 9.8 UPGRADE UPGRADE The affected product is vulnerable to an out-of-bounds write, which may result in corruption of data or code e

References

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