Windows Nano Server 1909 · Version Status
Windows Nano Server 1909 End of Life Date
Windows Nano Server 1909 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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Windows Nano Server 1909 is past end of life. This version no longer receives security patches. 1824 days past EOL — migrate to a supported version immediately.
EOL Date
May 11, 2021
1824 days past EOL
Latest Release
10.0.18363
Standard release
Release Date
Nov 12, 2019
Windows Nano Server 1909 series
All Windows Nano Server Versions
| Version | Latest | EOL Date | Status |
|---|
| 1607 |
10.0.14393 |
Sep 10, 2018 |
EOL |
| 1709 |
10.0.16299 |
Apr 9, 2019 |
EOL |
| 1803 |
10.0.17134 |
Nov 12, 2019 |
EOL |
| 2019 LTS |
10.0.17763 |
Jan 9, 2029 |
Active |
| 1809 |
10.0.17763 |
Nov 10, 2020 |
EOL |
| 1903 |
10.0.18362 |
Dec 8, 2020 |
EOL |
| → 1909 |
10.0.18363 |
May 11, 2021 |
EOL |
| 2004 |
10.0.19041 |
Dec 14, 2021 |
EOL |
What does Windows Nano Server 1909 end of life mean?
When Windows Nano Server 1909 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 Windows Nano Server 1909 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Windows Nano Server 2025 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Windows Nano Server 1909 reach end of life?
Windows Nano Server 1909 reached end of life on May 11, 2021. This version is no longer receiving security patches.
Is Windows Nano Server 1909 still supported?
No. Windows Nano Server 1909 reached end of life on May 11, 2021 and is no longer receiving security patches.
What should I upgrade to from Windows Nano Server 1909?
The recommended upgrade from Windows Nano Server 1909 is
Windows Nano Server 2025 — the latest actively supported version. Check the
Windows Nano Server full timeline for all supported versions.
What are the security risks of running Windows Nano Server 1909 past EOL?
When Windows Nano Server 1909 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 Windows Nano Server should migrate immediately or implement compensating controls.