CVE-2026-25656: CWE-427: Uncontrolled Search Path Element in Siemens SINEC NMS
A vulnerability has been identified in SINEC NMS (All versions < V4.0 SP3), User Management Component (UMC) (All versions < V2.15.2.1). The affected application permits improper modification of a configuration file by a low-privileged user. This could allow an attacker to load malicious DLLs, potentially leading to arbitrary code execution with SYSTEM privileges.(ZDI-CAN-28108)
AI Analysis
Technical Summary
This vulnerability (CWE-427: Uncontrolled Search Path Element) in Siemens SINEC NMS and its User Management Component permits a low-privileged user to modify configuration files improperly. This can lead to the loading of malicious dynamic link libraries (DLLs), allowing an attacker to execute arbitrary code with SYSTEM privileges. It affects all versions before V4.0 SP3 for SINEC NMS and before V2.15.2.1 for the User Management Component. The CVSS v3.1 score is 7.8, indicating high severity, with attack vector local, low attack complexity, low privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation could allow an attacker with low privileges to execute arbitrary code on the affected system with SYSTEM-level privileges, potentially leading to full system compromise. This includes complete control over the affected device and the ability to disrupt operations or steal sensitive information.
Mitigation Recommendations
Patch status is not yet confirmed — check the Siemens vendor advisory for current remediation guidance. Until an official fix is available, restrict local access to trusted users only and monitor for unauthorized configuration changes. Avoid running vulnerable versions in sensitive environments.
CVE-2026-25656: CWE-427: Uncontrolled Search Path Element in Siemens SINEC NMS
Description
A vulnerability has been identified in SINEC NMS (All versions < V4.0 SP3), User Management Component (UMC) (All versions < V2.15.2.1). The affected application permits improper modification of a configuration file by a low-privileged user. This could allow an attacker to load malicious DLLs, potentially leading to arbitrary code execution with SYSTEM privileges.(ZDI-CAN-28108)
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-427: Uncontrolled Search Path Element) in Siemens SINEC NMS and its User Management Component permits a low-privileged user to modify configuration files improperly. This can lead to the loading of malicious dynamic link libraries (DLLs), allowing an attacker to execute arbitrary code with SYSTEM privileges. It affects all versions before V4.0 SP3 for SINEC NMS and before V2.15.2.1 for the User Management Component. The CVSS v3.1 score is 7.8, indicating high severity, with attack vector local, low attack complexity, low privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation could allow an attacker with low privileges to execute arbitrary code on the affected system with SYSTEM-level privileges, potentially leading to full system compromise. This includes complete control over the affected device and the ability to disrupt operations or steal sensitive information.
Mitigation Recommendations
Patch status is not yet confirmed — check the Siemens vendor advisory for current remediation guidance. Until an official fix is available, restrict local access to trusted users only and monitor for unauthorized configuration changes. Avoid running vulnerable versions in sensitive environments.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- siemens
- Date Reserved
- 2026-02-04T12:39:06.286Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 698b05e84b57a58fa1fb4535
Added to database: 2/10/2026, 10:18:16 AM
Last enriched: 4/14/2026, 11:18:43 AM
Last updated: 5/22/2026, 5:11:54 AM
Views: 132
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