CVE-2025-30047

Remote Code Execution via Java Deserialization in CGM CLININET

State: Published
Severity: 9.4 Critical
Published: Oct 23, 2026
Updated: Oct 28, 2026
Reserved: Mar 14, 2025

Description

CGM CLININET is vulnerable to Remote Code Execution caused by deserialization of untrusted data. The server exposes an HTTP-based API, used by the administrative module, that exchanges data using Java object serialization. An attacker within the same local network is able to send requests to this API and transmit a crafted serialized object. When it is deserialized, it allows arbitrary code execution with root privileges on the server.

This issue was fixed in version 2026.MS3

Scores

CVSS	Score	Vector	Source
4.0	9.4 Critical	CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H	CERT-PL

Weaknesses

CWE-502 Deserialization of Untrusted Data

Affected Products

Product	Versions
CGM CLININETCGM	before 2026.MS3Affected

References

https://cert.pl/en/posts/2026/10/CVE-2025-30043/third-party-advisory
https://www.cgm.com/pol_pl/products/szpital/cgm-clininet.htmlproduct

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