Windows Server 1909-sac · Version Status
Windows Server 1909-sac End of Life Date
Windows Server 1909-sac end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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Windows Server 1909-sac 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 Server 1909-sac series
All Windows Server Versions
| Version | Latest | EOL Date | Status |
|---|
| 2000 LTS |
5.0.2195 |
Jul 13, 2010 |
EOL |
| 2003 LTS |
5.2.3790 |
Apr 10, 2007 |
EOL |
| 2003-sp1 |
5.2.3790 |
Apr 14, 2009 |
EOL |
| 2003-sp2 LTS |
5.2.3790 |
Jul 14, 2015 |
EOL |
| 2008-sp2 LTS |
6.0.6003 |
Jan 14, 2020 |
EOL |
| 2008-r2-sp1 LTS |
6.1.7601 |
Jan 14, 2020 |
EOL |
| 2012 LTS |
6.2.9200 |
Oct 10, 2023 |
EOL |
| 2012-r2 LTS |
6.3.9600 |
Oct 10, 2023 |
EOL |
What does Windows Server 1909-sac end of life mean?
When Windows Server 1909-sac 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 Server 1909-sac past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Windows Server 2025 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Windows Server 1909-sac reach end of life?
Windows Server 1909-sac reached end of life on May 11, 2021. This version is no longer receiving security patches.
Is Windows Server 1909-sac still supported?
No. Windows Server 1909-sac reached end of life on May 11, 2021 and is no longer receiving security patches.
What should I upgrade to from Windows Server 1909-sac?
The recommended upgrade from Windows Server 1909-sac is
Windows Server 2025 — the latest actively supported version. Check the
Windows Server full timeline for all supported versions.
What are the security risks of running Windows Server 1909-sac past EOL?
When Windows Server 1909-sac 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 Server should migrate immediately or implement compensating controls.