Siemens SIMOVE Fleetmanager and SIPLANT

Summary

Siemens SIMOVE Fleetmanager and SIPLANT products contain a critical path traversal vulnerability (CVE-2026-67367) that allows unauthenticated remote attackers to read arbitrary files from the underlying operating system. This could expose sensitive data like credentials and private keys. Siemens has released updated versions to address this issue and recommends immediate patching.

Full text

ICS Advisory Siemens SIMOVE Fleetmanager and SIPLANT Release DateSeptember 22, 2026 Alert CodeICSA-26-265-07 Related topics: Industrial Control System Vulnerabilities , Industrial Control Systems 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 MitigationConfigure appropriate user management by restricting services' access rights to project files. MitigationRestrict network access to affected devices. Vendor fixUpdate to V3.1.13 or later versionhttps://support.industry.siemens.com/cs/ww/en/view/109813191/ Vendor fixUpdate to V3.1.4 or later version Contact customer support siplant-support.de@siemens.com Vendor fixUpdate to V3.2.4 or later versionhttps://support.industry.siemens.com/cs/ww/en/view/109813191/ Vendor fixUpdate to V3.3.2 or later versionhttps://support.industry.siemens.com/cs/ww/en/view/109813191/ Vendor fixUpdate to V4.0.1 or later versionhttps://support.industry.siemens.com/cs/ww/en/view/110004946/ Vendor fixContact customer support siplant-support.de@siemens.com MitigationFor 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 This product is provided subject to this Notification and this Privacy & Use policy. Vendor Siemens Tags Sector: Critical Manufacturing Sector Topics: Industrial Control System Vulnerabilities, Industrial Control Systems Please share your thoughts We recently updated our anonymous product survey; we welcome your feedback. Related Advisories Sep 22, 2026 ICS Advisory | ICSA-26-265-09 OpenPLC Runtime v3 Sep 22, 2026 ICS Advisory | ICSA-26-265-02 lwIP (Lightweight IP) Sep 22, 2026 ICS Advisory | ICSA-26-265-03 Siemens Siveillance Control Sep 22, 2026 ICS Advisory | ICSA-26-265-01 lwIP TCP/IP Stack MQTT Client Application

Indicators of Compromise

• cve — CVE-2026-67367

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