CVE-2018-19666: Ossec

High severity, CVSS 7.8. EPSS: 0.8% chance of exploitation in the next 30 days.

The agent in OSSEC through 3.1.0 on Windows allows local users to gain NT AUTHORITY\SYSTEM access via Directory Traversal by leveraging full access to the associated OSSEC server.

Affected products

• Ossec Ossec: up to and including 3.1.0
• Wazuh Wazuh: from 1.0.0, up to and including 2.1.1

Published 2018-11-29. Last modified 2026-06-17.