Critical Alert 1 Active Exploit Detected Today

CVE-2026-18577 — N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability →
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August 4, 2026

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CVE-2025-40737NVD

Vulnerability Summary

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-26571).
Severity Level
HIGH(8.7)
Published Date
Jul 8, 2025
Last Modified
Aug 21, 2025
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
Data Pending
Root Weakness (CWE)
CWE-22: Path Traversal ↗
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory.
CVSS v4.0 Base Metrics
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone

External References