CVE-2023-39003: Opnsense

High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days.

OPNsense Community Edition before 23.7 and Business Edition before 23.4.2 was discovered to contain insecure permissions in the directory /tmp.

Affected products

• Opnsense Opnsense: before 23.7 (fixed in 23.7)

Published 2023-08-09. Last modified 2026-07-09.