CVE-2020-8447: Ossec

Critical severity, CVSS 9.8. EPSS: 1.9% chance of exploitation in the next 30 days.

In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to a use-after-free during processing of syscheck formatted msgs (received from authenticated remote agents and delivered to the analysisd processing queue by ossec-remoted).

Affected products

• Ossec Ossec: from 2.7, up to and including 3.5.0

Published 2020-01-30. Last modified 2026-06-17.