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Siemens SIMOVE Fleetmanager and SIPLANT

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Overview

Siemens has identified a serious vulnerability in its SIMOVE Fleetmanager and SIPLANT products, which could allow attackers to access sensitive files on affected systems. This flaw, classified as a path traversal vulnerability (CVE-2026-67367), means that an unauthenticated attacker could read arbitrary files from the operating system, potentially exposing critical data like credentials and configuration secrets. The affected versions include various releases of SIMOVE Fleetmanager (up to V4.0) and multiple versions of SIPLANT (including V1.7 to V3.1). Siemens has urged users to update to the latest versions to mitigate this risk, emphasizing the importance of securing network access to these devices. Organizations using these products should act quickly to ensure their systems are protected against potential exploitation.

Key Takeaways

  • Affected Systems: Affected products include Siemens SIMOVE Fleetmanager (V3.1 < 3.1.13, V3.2 < 3.2.4, V3.3 < 3.3.2, V4.0 < 4.0.1) and SIPLANT (V1.7, V2.2, V3.0, V3.1 < 3.1.4).
  • Action Required: Siemens recommends updating to the following versions: SIMOVE Fleetmanager to V3.
  • Timeline: Disclosed on 2026-09-08

Original Article Summary

View CSAF Summary SIMOVE Fleetmanager and SIPLANT contain a path traversal vulnerability that could allow an attacker to access files outside of intended scope. Siemens has released new versions for the affected products and recommends to update to the latest versions. The following versions of Siemens SIMOVE Fleetmanager and SIPLANT are affected: SIMOVE Fleetmanager V3.1 vers:intdot/<3.1.13 (CVE-2026-67367) SIMOVE Fleetmanager V3.2 vers:intdot/<3.2.4 (CVE-2026-67367) SIMOVE Fleetmanager V3.3 vers:intdot/<3.3.2 (CVE-2026-67367) SIMOVE Fleetmanager V4.0 vers:intdot/<4.0.1 (CVE-2026-67367) SIPLANT V1.7 vers:all/* (CVE-2026-67367) SIPLANT V2.2 vers:all/* (CVE-2026-67367) SIPLANT V3.0 vers:all/* (CVE-2026-67367) SIPLANT V3.1 vers:intdot/<3.1.4 (CVE-2026-67367) CVSS Vendor Equipment Vulnerabilities v3 8.6 Siemens Siemens SIMOVE Fleetmanager and SIPLANT Relative Path Traversal Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: Germany Vulnerabilities Expand All + CVE-2026-67367 Affected devices do not properly validate and neutralize directory traversal sequences in the file-serving endpoint of the embedded HTTP server. This could allow an unauthenticated remote attacker to read arbitrary files from the underlying operating system without any credentials, potentially exposing sensitive data such as credential stores, private keys, and configuration secrets. View CVE Details Affected Products Siemens SIMOVE Fleetmanager and SIPLANT Vendor: Siemens Product Version: SIMOVE Fleetmanager V3.1 < V3.1.13, SIMOVE Fleetmanager V3.2 < V3.2.4, SIMOVE Fleetmanager V3.3 < V3.3.2, SIMOVE Fleetmanager V4.0 < V4.0.1, SIPLANT V1.7, SIPLANT V2.2, SIPLANT V3.0, SIPLANT V3.1 < V3.1.4 Product Status: known_affected Remediations Mitigation Configure appropriate user management by restricting services' access rights to project files. Mitigation Restrict network access to affected devices. Vendor fix Update to V3.1.13 or later version https://support.industry.siemens.com/cs/ww/en/view/109813191/ Vendor fix Update to V3.1.4 or later version Contact customer support siplant-support.de@siemens.com Vendor fix Update to V3.2.4 or later version https://support.industry.siemens.com/cs/ww/en/view/109813191/ Vendor fix Update to V3.3.2 or later version https://support.industry.siemens.com/cs/ww/en/view/109813191/ Vendor fix Update to V4.0.1 or later version https://support.industry.siemens.com/cs/ww/en/view/110004946/ Vendor fix Contact customer support siplant-support.de@siemens.com Mitigation For more information see the associated Siemens security advisory SSA-517424: Path Traversal Vulnerability in SIMOVE Fleetmanager and SIPLANT - CSAF Version, SSA-517424: Path Traversal Vulnerability in SIMOVE Fleetmanager and SIPLANT - HTML Version. Relevant CWE: CWE-23 Relative Path Traversal Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.6 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N Acknowledgments Siemens ProductCERT reported this vulnerability to CISA. General Recommendations As a general security measure, Siemens strongly recommends protecting network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity Additional Resources For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories Terms of Use The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use. Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the exploitation risk of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolate them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices. 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. Advisory Conversion Disclaimer This ICSA is a verbatim republication of Siemens ProductCERT SSA-517424 from a direct conversion of the vendor's Common Security Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please contact Siemens ProductCERT directly for any questions regarding this advisory. Revision History Initial Release Date: 2026-09-08 Date Revision Summary 2026-09-08 1 Publication Date 2026-09-22 2 Initial CISA Republication of Siemens ProductCERT SSA-517424 advisory Legal Notice and Terms of Use

Impact

Affected products include Siemens SIMOVE Fleetmanager (V3.1 < 3.1.13, V3.2 < 3.2.4, V3.3 < 3.3.2, V4.0 < 4.0.1) and SIPLANT (V1.7, V2.2, V3.0, V3.1 < 3.1.4).

Exploitation Status

The exploitation status is currently unknown. Monitor vendor advisories and security bulletins for updates.

Timeline

Disclosed on 2026-09-08

Remediation

Siemens recommends updating to the following versions: SIMOVE Fleetmanager to V3.1.13 or later, V3.2.4 or later, V3.3.2 or later, V4.0.1 or later; SIPLANT to V3.1.4 or later. It also suggests configuring appropriate user management and restricting network access to affected devices.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to CVE, Vulnerability, Update, and 1 more.

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