Sinec Nms
CVE-2026-25656
HIGH
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
-
AccessObtain low-privileged local system access
-
ExploitModify UMC configuration file
-
ExecutionLoad malicious DLL
-
ImpactExecute arbitrary code as SYSTEM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A08:2025 - Software or Data Integrity Failures
ASVS 5.0
V13 - Configuration Search path element control
|
| Exploitation Conditions | Low-privileged user account on SINEC NMS system with UMC version < V2.15.2.1; local filesystem write access to UMC configuration file; SYSTEM-level service loading the modified configuration. |
| Impact | CVSS 7.8 (HIGH). Attack vector: Local. Complexity: Low. Privileges required: Low. User interaction: None. |
| Exploit ScenarioDerived | An attacker could exploit this vulnerability to load malicious DLLs, potentially leading to arbitrary code execution with SYSTEM. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Mar 12, 2026
Arbitrary code execution with SYSTEM privileges in SINEC NMS User Management Component (all versions prior to V2.15.2.1) stems from improper access controls allowing low-privileged users to modify configuration files and load malicious DLLs. An authenticated attacker can exploit this to achieve complete system compromise. No patch is currently available.
Earlier versions of this analysis (1)
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. [CVSS 7.8 HIGH]
RemediationAI
Monitor vendor advisories for a patch.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-427 (Uncontrolled Search Path Element). Affects Sinec Nms. 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)
Know when Sinec Nms gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
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
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
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)
Zero Day Initiative Advisories
Executive ViewAI
A high-severity vulnerability in SINEC NMS allows low-privileged users to modify critical configuration files, potentially enabling unauthorized system changes, data manipulation, or lateral movement within network infrastructure. Organizations running affected SINEC NMS versions face immediate risk of configuration tampering without requiring elevated privileges.
Restrict UMC configuration file permissions to administrator-only access; implement file integrity monitoring (FIM) on critical configuration files to detect unauthorized modifications; segment SINEC NMS systems from general user networks; enforce multi-factor authentication for administrative access; maintain detailed audit logs of all configuration changes; disable non-essential UMC features if operationally feasible.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
Affected Products (CPE)CVE.org
A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user.4.4
An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. Rated med
In logback version 1.2.7 and prior versions, an attacker with the required privileges to edit configurations files could
A vulnerability has been identified in SINEC NMS (All versions < V4.0). The affected application exposes an endpoint tha
A vulnerability has been identified in SINEC NMS (All versions < V2.0 SP1). Rated critical severity (CVSS 9.8), this vul
ap_escape_quotes() may write beyond the end of a buffer when given malicious input. Rated critical severity (CVSS 9.8),
A vulnerability has been identified in SINEC NMS (All versions < V3.0). Rated critical severity (CVSS 9.4), this vulnera
A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1). Rated critical severity (CVSS 9.1),
A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1). Rated critical severity (CVSS 9.1),
A vulnerability has been identified in SINEC NMS (All versions < V4.0). The affected application does not properly valid
A vulnerability has been identified in SINEC NMS (All versions < V4.0). The affected application does not properly valid
A vulnerability has been identified in SINEC NMS (All versions < V4.0). The affected devices are vulnerable to SQL injec
GitHub PoC
Exploit-DB