Opnsense 18.1 · Version Status
Opnsense 18.1 End of Life Date
Opnsense 18.1 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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Opnsense 18.1 is past end of life. This version no longer receives security patches. 2841 days past EOL — migrate to a supported version immediately.
EOL Date
Jul 29, 2018
2841 days past EOL
Latest Release
18.1.13
Standard release
Release Date
Jan 26, 2018
Opnsense 18.1 series
| Version | Latest | EOL Date | Status |
|---|
| 15.1 |
15.1.12 |
Jul 2, 2015 |
EOL |
| 15.7 |
15.7.25 |
Jan 28, 2016 |
EOL |
| 16.1 |
16.1.20 |
Jul 26, 2016 |
EOL |
| 16.7 |
16.7.14 |
Jan 27, 2017 |
EOL |
| 17.1 |
17.1.11 |
Jul 26, 2017 |
EOL |
| 17.7 |
17.7.12 |
Jan 26, 2018 |
EOL |
| → 18.1 |
18.1.13 |
Jul 29, 2018 |
EOL |
| 18.7 |
18.7.10 |
Jan 28, 2019 |
EOL |
What does Opnsense 18.1 end of life mean?
When Opnsense 18.1 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Opnsense 18.1 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Opnsense 26.1 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Opnsense 18.1 reach end of life?
Opnsense 18.1 reached end of life on July 29, 2018. This version is no longer receiving security patches.
Is Opnsense 18.1 still supported?
No. Opnsense 18.1 reached end of life on July 29, 2018 and is no longer receiving security patches.
What should I upgrade to from Opnsense 18.1?
The recommended upgrade from Opnsense 18.1 is
Opnsense 26.1 — the latest actively supported version. Check the
Opnsense full timeline for all supported versions.
What are the security risks of running Opnsense 18.1 past EOL?
When Opnsense 18.1 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL Opnsense should migrate immediately or implement compensating controls.