CVE-2020-8442: Ossec

High severity, CVSS 8.8. EPSS: 2.4% 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 heap-based buffer overflow in the rootcheck decoder component via an authenticated client.

Affected products

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

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