CVE-2020-27282: In Hamilton Medical AG,T1-Ventillator versions 2.2.3 and prior, an XML validation vulnerability in the ventila

Q: How do I fix CVE-2020-27282?

hamilton-t1 firmware: upgrade to newer than 2.2.3. Exact commands for each OS are on this page.

Q: Is CVE-2020-27282 being exploited?

CVE-2020-27282 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-2020-27282 affect?

CVE-2020-27282 affects hamilton-t1 firmware. Severity is medium (CVSS 4.3). In Hamilton Medical AG,T1-Ventillator versions 2.2.3 and prior, an XML validation vulnerability in the ventilator allows privileged attackers with physical access to render the device persistently unusable by uploading specially crafted con

Q: How urgent is CVE-2020-27282?

Priority 20/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2020-27282 is a medium-severity flaw (CVSS 4.3) affecting hamilton-t1 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Hamilton Medical AG,T1-Ventillator versions 2.2.3 and prior, an XML validation vulnerability in the ventilator allows privileged attackers with physical access to render the device persistently unusable by uploading specially crafted configuration files.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Physical
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-112
Published	2021-03-15
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2021-03-15 22:15 UTCPublished CVE record published
2026-06-17 03:09 UTCUpdated Record last modified

hamilton-medical hamilton-t1 firmware UPGRADE

Affected: <= 2.2.3

Fixed in: newer than 2.2.3

Safe to downgrade to: no unaffected older release

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-2020-27282?

hamilton-t1 firmware: upgrade to newer than 2.2.3. Exact commands for each OS are on this page.

Is CVE-2020-27282 being exploited?

CVE-2020-27282 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-2020-27282 affect?

CVE-2020-27282 affects hamilton-t1 firmware. Severity is medium (CVSS 4.3). In Hamilton Medical AG,T1-Ventillator versions 2.2.3 and prior, an XML validation vulnerability in the ventilator allows privileged attackers with physical access to render the device persistently unusable by uploading specially crafted con

How urgent is CVE-2020-27282?

Priority 20/100. No elevated risk signals yet.

Related CVEs

CVE-2020-27290 MEDIUM 4.3 UPGRADE In Hamilton Medical AG,T1-Ventillator versions 2.2.3 and prior, an information disclosure vulnerability in the
CVE-2020-27278 MEDIUM 5.2 UPGRADE In Hamilton Medical AG,T1-Ventillator versions 2.2.3 and prior, hard-coded credentials in the ventilator allow

References

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