Siemens SIMOVE Fleetmanager and SIPLANT
Siemens patched a high-severity path traversal in SIMOVE Fleetmanager and SIPLANT that can expose secrets.
CISA republished Siemens ProductCERT SSA-517424 covering CVE-2026-67367, a relative path traversal in SIMOVE Fleetmanager and SIPLANT. An unauthenticated remote attacker can read arbitrary files, including credential stores, private keys, and configuration secrets, through the embedded HTTP server. CVSS v3.1 is 8.6. Siemens has released updates for the affected Fleetmanager and SIPLANT versions.
- CVE-2026-67367 is unauthenticated path traversal in an embedded HTTP server.
- Attackers can read credential stores, private keys, and configuration files.
- Fleetmanager builds before 3.1.13, 3.2.4, 3.3.2, and 4.0.1 are affected.
- Multiple SIPLANT versions are affected; Siemens has published updates.
Vulnerabilities mentionedAll →
- CVE-2026-673679.2<1%Unauthenticated Directory Traversal File Read in Siemens SIMOVE Fleetmanager and SIPLANTpublished · Siemens SIMOVE Fleetmanager
| CVE | Vulnerability | CVSS | EPSS | Flags | Affected | Exposure | Published |
|---|---|---|---|---|---|---|---|
| CVE-2026-67367 | Unauthenticated Directory Traversal File Read in Siemens SIMOVE Fleetmanager and SIPLANT Siemens SIMOVE Fleetmanager and SIPLANT contain a directory traversal flaw (CWE-23) in the file-serving endpoint of an embedded HTTP server, which fails to validate and neutralize traversal sequences. An unauthenticated remote attacker can send crafted requests containing directory traversal sequences to this endpoint and read arbitrary files from the underlying operating system with no credentials required. Successful exploitation can expose sensitive data such as credential stores, private keys, and configuration secrets, potentially enabling follow-on compromise of the deployment. Affected users are operators running the listed SIMOVE Fleetmanager releases (V3.1 through V4.0 below the fixed versions) and any release of SIPLANT V1.7, V2.2, V3.0, or V3.1 below V3.1.4. There is no known public proof-of-concept, the flaw is not in CISA KEV, and EPSS puts 30-day exploitation probability at only 0.8%, so no exploitation is currently known. |
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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
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.
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
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 |