CVE-2017-12721: An Improper Certificate Validation issue was discovered in Smiths Medical Medfusion 4000 Wireless Syringe Infu

Routine

MEDIUM 5.9REMOTEMITIGATE

CVE-2017-12721 is a medium-severity flaw (CVSS 5.9) affecting medfusion 4000 wireless syringe infusion pump. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An Improper Certificate Validation issue was discovered in Smiths Medical Medfusion 4000 Wireless Syringe Infusion Pump, Version 1.1, 1.5, and 1.6. The pump does not validate host certificates, leaving the pump vulnerable to a man-in-the-middle (MITM) attack.

Why this priority

Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-295
Published	2018-02-15
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: smiths-medical

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

Am I affected?

Timeline

2018-02-15 10:29 UTCPublished CVE record published
2026-06-17 01:03 UTCUpdated Record last modified

smiths-medical medfusion 4000 wireless syringe infusion pump MITIGATE

Affected: 1.1 · 1.5 · 1.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2017-12721?

medfusion 4000 wireless syringe infusion pump: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-12721 being exploited?

CVE-2017-12721 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-2017-12721 affect?

CVE-2017-12721 affects medfusion 4000 wireless syringe infusion pump. Severity is medium (CVSS 5.9). An Improper Certificate Validation issue was discovered in Smiths Medical Medfusion 4000 Wireless Syringe Infusion Pump, Version 1.1, 1.5, and 1.6. The pump does not validate host certificates, leaving the pump vulnerable to a man-in-the-mi

How urgent is CVE-2017-12721?

Priority 39/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2017-12726 HIGH 7.3 MITIGATE A Use of Hard-coded Password issue was discovered in Smiths Medical Medfusion 4000 Wireless Syringe Infusion P
CVE-2017-12725 MEDIUM 5.6 MITIGATE A Use of Hard-coded Credentials issue was discovered in Smiths Medical Medfusion 4000 Wireless Syringe Infusio
CVE-2017-12724 HIGH 8.1 MITIGATE A Use of Hard-coded Credentials issue was discovered in Smiths Medical Medfusion 4000 Wireless Syringe Infusio
CVE-2017-12723 LOW 3.7 MITIGATE A Password in Configuration File issue was discovered in Smiths Medical Medfusion 4000 Wireless Syringe Infusi
CVE-2017-12722 MEDIUM 5.3 MITIGATE An Out-of-bounds Read issue was discovered in Smiths Medical Medfusion 4000 Wireless Syringe Infusion Pump, Ve

References

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