CVE-2020-27985: Securityonionsolutions Security Onion

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Security Onion v2 prior to 2.3.10 has an incorrect sudo configuration, which allows the administrative user to obtain root access without using the sudo password by editing and executing /home/<user>/SecurityOnion/setup/so-setup.

Affected products

• Securityonionsolutions Security Onion: from 2.0.0, before 2.3.10 (fixed in 2.3.10)

Published 2020-11-23. Last modified 2026-06-17.