Improper File Modification in SINEC NMS User Management Component by Siemens
CVE-2026-25656

8.5HIGH

Key Information:

Vendor

Siemens
Status
Sinec Nms
User Management Component (umc)
Vendor
CVE Published:
10 February 2026

What is CVE-2026-25656?

A vulnerability exists in the SINEC Network Management System's User Management Component, affecting all versions prior to 2.15.2.1. Due to improper configuration management, a low-privileged user can manipulate configuration files, leading to the potential execution of malicious DLLs. This weakness may allow attackers to execute arbitrary code with elevated SYSTEM privileges, posing a significant risk to the integrity and security of the network management system.

Affected Version(s)

SINEC NMS 0

User Management Component (UMC) 0

References

https://cert-portal.siemens.com/productcert/html/ssa-3119...

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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