Siemens Mendix Studio Pro

As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global).

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1. EXECUTIVE SUMMARY

• CVSS v4 4.6
• ATTENTION: Exploitable remotely
• Vendor: Siemens
• Equipment: Mendix Studio Pro
• Vulnerability: Path Traversal

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to write or modify arbitrary files in directories outside a developer's project directory.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Siemens reports the following versions of Mendix Studio Pro integrated development environment are affected:

• Siemens Mendix Studio Pro 8: Versions prior to V8.18.35
• Siemens Mendix Studio Pro 9: Versions prior to V9.24.35
• Siemens Mendix Studio Pro 10: Versions prior to V10.23.0
• Siemens Mendix Studio Pro 10.6: Versions prior to V10.6.24
• Siemens Mendix Studio Pro 10.12: Versions prior to V10.12.17
• Siemens Mendix Studio Pro 10.18: Versions prior to V10.18.7
• Siemens Mendix Studio Pro 11: All versions

3.2 VULNERABILITY OVERVIEW

3.2.1 IMPROPER LIMITATION OF A PATHNAME TO A RESTRICTED DIRECTORY ('PATH TRAVERSAL') CWE-22

A zip path traversal vulnerability exists in the module installation process of Studio Pro. By crafting a malicious module and distributing it via (for example) the Mendix Marketplace, an attacker could write or modify arbitrary files in directories outside a developer's project directory upon module installation.

CVE-2025-40592 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.1 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N).

A CVSS v4 score has also been calculated for CVE-2025-40592. A base score of 4.6 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: Germany

3.4 RESEARCHER

Siemens reported this vulnerability to CISA.

4. MITIGATIONS

Siemens has released new versions for several affected products and recommends users update to the latest versions. Siemens is preparing further fixed versions and recommends specific countermeasures for products where fixes are not, or not yet, available:

• Mendix Studio Pro 8: Update to V8.18.35 or later version.
• Mendix Studio Pro 9: Update to V9.24.35 or later version.
• Mendix Studio Pro 10: Update to V10.23.0 or later version.
• Mendix Studio Pro 10.6: Update to V10.6.24 or later version.
• Mendix Studio Pro 10.12: Update to V10.12.17 or later version.
• Mendix Studio Pro 10.18: Update to V10.18.7 or later version.
• Mendix Studio Pro 11: Currently no fix is available.

Siemens recommends that users do not install untrusted/unverified modules in Studio Pro projects.

As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. To operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens' operational guidelines for industrial security and following recommendations in the product manuals.

Additional information on industrial security by Siemens can be found on the Siemens industrial security webpage

For more information see the associated Siemens security advisory SSA-627195 in HTML and CSAF.

CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. This vulnerability has a high attack complexity.

5. UPDATE HISTORY

• June 17, 2025: Initial Republication of Siemens SSA-627195

• Siemens