CVE-2025-40801: Critical severity Siemens COMOS vulnerability

Published Dec 9, 2025
·
Updated

A vulnerability has been identified in COMOS V10.6 (All versions < V10.6.1), COMOS V10.6 (All versions < V10.6.1), JT Bi-Directional Translator for STEP (All versions), NX V2412 (All versions < V2412.8900 with Cloud Entitlement (bundled as NX X)), NX V2506 (All versions < V2506.6000 with Cloud Entitlement (bundled as NX X)), Simcenter 3D (All versions < V2506.6000 with Cloud Entitlement (bundled as Simcenter X Mechanical)), Simcenter Femap (All versions < V2506.0002 with Cloud Entitlement (bundled as Simcenter X Mechanical)), Simcenter Studio (All versions < V2506.0001), Simcenter System Architect (All versions < V2506.0001), Tecnomatix Plant Simulation (All versions < V2504.0007). The SALT SDK is missing server certificate validation while establishing TLS connections to the authorization server. This could allow an attacker to perform a man-in-the-middle attack.

Affected Software

7 affected components
Siemens COMOS<10.6.1
Siemens Nx<2412.8900, <2506.6000
Siemens Simcenter 3D<2506.6000
Siemens Simcenter Femap<2506.0002
Siemens Simcenter Studio<2506.0001
Siemens Simcenter System Architect<2506.0001
Siemens Tecnomatix Plant Simulation<2504.0007

Event History

Dec 9, 2025
CVE Published
via MITRE·10:44 AM
Data Sourced
via MITRE·10:44 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·04:17 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2025-40801?

The severity of CVE-2025-40801 has been classified as critical due to its potential for remote code execution.

2

How do I fix CVE-2025-40801?

To remediate CVE-2025-40801, users should update affected products to their latest versions as specified by Siemens.

3

What products are affected by CVE-2025-40801?

CVE-2025-40801 affects COMOS V10.6, Siemens NX V2412 (versions below V2412.8900), NX V2506 (versions below V2506.6000), among others.

4

Is there a workaround for CVE-2025-40801?

A temporary workaround for CVE-2025-40801 may involve applying specific configuration changes, but full remediation is achieved through version updates.

5

When was CVE-2025-40801 disclosed?

CVE-2025-40801 was disclosed in 2025 as part of Siemens’ ongoing security monitoring efforts.

Contact

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