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CVE-2026-25656

Published: Feb 10, 2026Updated: Apr 14, 2026 Sources: CVE List NVD BDU csafCWE-427
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.2%
Top 85.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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)

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-427

Affected Products

sinec nmssiemens
On-prem
Enterprise Software / collaboration-groupware
user management componentsiemens
On-prem
Enterprise Software / collaboration-groupware
SINEC NMSSiemens AG
On-premNetwork Device
Networking Infrastructure / network-management
User Management Component (UMC)Siemens AG
On-prem
Enterprise Software / collaboration-groupware
SINEC NMSSiemens
On-prem
Enterprise Software / collaboration-groupware
siemenscommercialDEEnterprise Softwareaka siemens ag
siemens agcommercialDEEnterprise Softwareaka siemens
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Persistence
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/html/ssa-311973.html
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/csaf/ssa-311973.json
cert-portal.siemens.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-043-01.json
raw.githubusercontent.com
and 11 more references View all →

Timeline

Published
Feb 10, 2026
Last Updated
Apr 14, 2026

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