CVE-2025-30047: Remote Code Execution via Java Deserialization in CGM CLININET

Severity: critical (CVSS 9.4 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-23 · updated 2026-10-28
Weakness: CWE-502

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

Affected products

CGM CLININET: before 2026.MS3 — fixed in 2026.MS3

How to fix

Upgrade to a fixed version: CGM CLININET 2026.MS3. Check the vendor advisory for mitigations.

References

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