EUVD-2025-20431Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK
2 techniques across 2 tactics: Discovery, Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | Sensitive files such as configuration files, credentials, or system files can be read, potentially leading to further compromise. With a CVSS score of 8.8 (HIGH), this represents a significant risk. |
| Exploit ScenarioDerived | An attacker modifies a file parameter to include directory traversal sequences (../../etc/passwd) to read arbitrary files from the server filesystem. |
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Alert meAnalysisAIv1 – Mar 16, 2026
A vulnerability has been identified in SINEC NMS (All versions < V4.0). The affected application does not properly validate file paths when extracting uploaded ZIP files. This could allow an attacker to write arbitrary files to restricted locations and potentially execute code with elevated privileges (ZDI-CAN-26572).
Earlier versions of this analysis (1)
RemediationAI
Validate and sanitize file path inputs. Use a whitelist of allowed files or directories. Implement chroot jails or containerization.
Affected VersionsENISA
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
Path traversal allows an attacker to access files outside the intended directory by manipulating file paths with sequences like '../'.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Executive ViewAI
Organizations using A vulnerability face significant risk from CVE-2025-40738, a path traversal vulnerability rated CVSS 8.8. This could allow attackers to access or modify files outside intended directories, potentially exposing sensitive configuration or credentials. Organizations should apply vendor updates when available and consider compensating controls in the interim.
Apply vendor patch. If immediate patching is not feasible: (1) Restrict file upload functionality via WAF; (2) Implement allowlist-based file type validation; (3) Use chroot/containerization to limit filesystem access.
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
Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.
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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 devices are vulnerable to SQL injec
A vulnerability has been identified in SINEC NMS (All versions < V2.0 SP1). Rated high severity (CVSS 8.8), this vulnera
GitHub PoC
Exploit-DB