In Hamilton Medical AG,T1-Ventillator versions 2.2.3 and prior, an XML validation vulnerability in the ventilator allows privileged attacke…

published 2021-03-15 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-19795

cvss: 4.3; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 18%
public exploits: 0; none known

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSMA-21-047-01 updated 2021-02-16 cvss 4.3

Hamilton-T1

Hamilton Medical AG T1 Ventilator <= 2.2.3
affected: vendor fix

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	4.3	CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	2.1	AV:L/AC:L/Au:N/C:N/I:N/A:P

Affected products

n/a Hamilton Medical AG, T1-Ventillator

Classification

Weakness

CWE-112 Missing XML Validation

References

us-cert.cisa.gov /ics/advisories/icsma-21-047-01
third-party-advisory, us-government-resource

Sources

CVE List CVE-2020-27282
NVD CVE-2020-27282

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary