CVE-2026-25656

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-25656
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)

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://cert-portal.siemens.com/productcert/html/ssa-311973.html Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:siemens:sinec_nms:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:user_management_component:*:*:*:*:*:*:*:*
History

14 Apr 2026, 09:16

Type Values Removed Values Added
Summary
  • (es) Se ha identificado una vulnerabilidad en SINEC NMS (Todas las versiones), Componente de Gestión de Usuarios (UMC) (Todas las versiones &lt; V2.15.2.1). La aplicación afectada permite la modificación indebida de un archivo de configuración por parte de un usuario con pocos privilegios. Esto podría permitir a un atacante cargar DLLs maliciosas, lo que podría llevar a la ejecución de código arbitrario con privilegios de SYSTEM.(ZDI-CAN-28108)
Summary (en) A vulnerability has been identified in SINEC NMS (All versions), 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) (en) 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)

12 Feb 2026, 15:25

Type Values Removed Values Added
First Time Siemens sinec Nms
Siemens
Siemens user Management Component
References () https://cert-portal.siemens.com/productcert/html/ssa-311973.html - () https://cert-portal.siemens.com/productcert/html/ssa-311973.html - Vendor Advisory
CPE cpe:2.3:a:siemens:user_management_component:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:sinec_nms:-:*:*:*:*:*:*:*

10 Feb 2026, 10:15

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-10 10:15

Updated : 2026-04-14 09:16

NVD link : CVE-2026-25656

Mitre link : CVE-2026-25656

CVE.ORG link : CVE-2026-25656

JSON object : View

Products Affected

siemens

  • user_management_component
  • sinec_nms
CWE
CWE-427

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