CVE-2026-67367 Siemens CVE debrief

Who should care

Defenders and administrators of SIMOVE Fleetmanager and SIPLANT products should assess exposure and prioritize remediation efforts. This includes reviewing and applying vendor-provided patches, restricting access to the embedded HTTP server, and monitoring for suspicious activity. Security teams and vulnerability management teams should also verify affected versions and perform inventory checks to assess exposure and implement compensating controls for

Why it matters

CVE-2026-67367 allows unauthenticated remote attackers to read arbitrary files from the underlying operating system, potentially exposing sensitive data. Defenders and administrators of SIMOVE Fleetmanager and SIPLANT products should assess exposure and prioritize remediation.

• Potential exposure of sensitive data such as credential stores, private keys, and configuration secrets
• Possible disruption of critical systems and services due to unauthorized file access
• Need for verification of affected versions and inventory checks
• Priority for applying vendor-provided patches and implementing compensating controls

Technical summary

The vulnerability allows unauthenticated remote attackers to read arbitrary files from the underlying operating system without credentials, potentially exposing sensitive data such as credential stores, private keys, and configuration secrets. This is due to improper validation and neutralization of directory traversal sequences in the file-serving endpoint of the embedded HTTP server in SIMOVE Fleetmanager and SIPLANT products. Affected devices are SIMOVE Fleetmanager V3.1 (All versions < V3.1.13), SIMOVE Fleetmanager V3.2 (All versions < V3.2.4), SIMOVE Fleetmanager V3.3 (All versions < V3.3.2), SIMOVE Fleetmanager V4.0 (All versions < V4.0.1), SIPLANT V1.7 (All versions), SIPLANT V2.2 (All versions), SIPLANT

Defensive priority

High

Recommended defensive actions

• Review and apply vendor-provided patches for affected SIMOVE Fleetmanager and SIPLANT products immediately.
• Restrict access to the embedded HTTP server to trusted users and networks only.
• Monitor for suspicious activity and implement additional security measures to protect sensitive data.
• Verify affected versions and perform inventory checks to assess exposure.
• Implement compensating controls for exposed systems while remediation is scheduled and verified.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Review relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The CVE record and NVD vulnerability detail page provide information on the vulnerability. However, the extent of exploitation and affected versions require verification from official sources. Siemens has provided patches for affected SIMOVE Fleetmanager and SIPLANT products. Users should review and apply these patches, restrict access to the embedded HTTP server, and monitor for suspicious activity. The vulnerability allows unauthenticated remote attackers to read arbitrary files from the underlying operating system without any valid

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.