VDB-345188 · CVE-2026-25656 · ssa-311973

Siemens SINEC NMS/User Management Component prior 2.15.2.1 uncontrolled search path

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Siemens SINEC NMS and User Management Component and classified as problematic. This affects an unknown function. Such manipulation leads to uncontrolled search path. This vulnerability is listed as CVE-2026-25656. The attack must be carried out locally. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Siemens SINEC NMS and User Management Component. Affected by this issue is an unknown code. The manipulation with an unknown input leads to a uncontrolled search path vulnerability. Using CWE to declare the problem leads to CWE-427. The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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)

The advisory is shared for download at cert-portal.siemens.com. This vulnerability is handled as CVE-2026-25656 since 02/04/2026. The exploitation is known to be difficult. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/10/2026). The MITRE ATT&CK project declares the attack technique as T1574.

Upgrading to version 2.15.2.1 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Siemens

Name

License

commercial

Website

Vendor: https://www.siemens.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.0
VulDB Temp Score: 6.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (siemens): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Uncontrolled search path
CWE: CWE-427 / CWE-426
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: SINEC NMS/User Management Component 2.15.2.1

Timelineinfo

02/04/2026 CVE reserved
02/10/2026 +6 days Advisory disclosed
02/10/2026 +0 days VulDB entry created
02/10/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-311973
Status: Confirmed

CVE: CVE-2026-25656 (🔒)
GCVE (CVE): GCVE-0-2026-25656
GCVE (VulDB): GCVE-100-345188

Entryinfo

Created: 02/10/2026 11:42
Changes: 02/10/2026 11:42 (75)
Complete: 🔍
Cache ID: 216::103