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)

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

Vendors Products
Siemens
  • Sinec-nms
  • Sinec Nms
  • User Management Component

Configuration 1 [-]

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

No data.

References
Link Providers
https://cert-portal.siemens.com/productcert/html/ssa-311973.html cve-icon cve-icon
History

Wed, 15 Apr 2026 18:00:00 +0000

Type Values Removed Values Added
Title Improper Configuration File Modification Allows Arbitrary Code Execution with Elevated Privileges

Tue, 14 Apr 2026 09:00:00 +0000

Type Values Removed Values Added
Description 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) 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)

Thu, 12 Feb 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Siemens sinec Nms
CPEs cpe:2.3:a:siemens:sinec_nms:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:user_management_component:*:*:*:*:*:*:*:*
Vendors & Products Siemens sinec Nms

Tue, 10 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 10 Feb 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Siemens
Siemens sinec-nms
Siemens user Management Component
Vendors & Products Siemens
Siemens sinec-nms
Siemens user Management Component

Tue, 10 Feb 2026 10:15:00 +0000

Type Values Removed Values Added
Description 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)
Weaknesses CWE-427
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: siemens

Published: 2026-02-10T09:58:55.243Z

Updated: 2026-04-14T08:40:44.535Z

Reserved: 2026-02-04T12:39:06.286Z

Link: CVE-2026-25656

cve-icon Vulnrichment

Updated: 2026-02-10T15:03:04.096Z

cve-icon NVD

Status : Modified

Published: 2026-02-10T10:15:59.880

Modified: 2026-04-14T09:16:35.313

Link: CVE-2026-25656

cve-icon Redhat

No data.