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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 c...

Published: Feb 10, 2026Updated: Apr 14, 2026 Sources: CVE List NVD BDU csafCWE-427
7.8HIGH
NVD MITRE
EPSS Score
0.2%
Top 85.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Multiple Siemens products are affected by two local privilege escalation vulnerabilities which could allow an low privileged attacker to load malicious DLLs, potentially leading to arbitrary code execution with elevated privileges. Siemens has released new versions for the affected products and recommends to update to the latest versions.

No summary for this CVE yet.

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

Siemens AG
commercial·DEaka Siemens
SINEC NMS
ICS / OT / IoT
User Management Component (UMC)
ICS / OT / IoT
user management component
ICS / OT / IoT
and 3 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2026-25656?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

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 →
News mentions
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