PatchTheCVEopnsense vulnerabilities and fixes
Recent CVEs affecting opnsense, with upgrade or downgrade steps. 4 tracked.
opnsense has 4 tracked vulnerabilities, 3 critical. A fixed release or vendor patch exists for 4. Most recent: 2026-05-13. Highest priority: CVE-2026-44194 (score 60/100).
- CVE-2026-44194 CRITICAL 9.1 UPGRADE OPNsense is a FreeBSD based firewall and routing platform
- CVE-2026-44193 CRITICAL 9.1 UPGRADE OPNsense is a FreeBSD based firewall and routing platform
- CVE-2026-45158 CRITICAL 9.1 UPGRADE OPNsense is a FreeBSD based firewall and routing platform
- CVE-2026-44195 MEDIUM 5.3 UPGRADE OPNsense is a FreeBSD based firewall and routing platform
FAQ
How do I fix opnsense vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is opnsense being exploited right now?
None of the tracked opnsense CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which opnsense CVE should I patch first?
CVE-2026-44194 currently ranks highest (60/100): OPNsense is a FreeBSD based firewall and routing platform.