Windows 10-21h1.x — End of Life
EOL High riskWindows 10-21h1.x reached end of life on Dec 13, 2022, 1394 days ago, and no longer receives security fixes. The most recent release in this series is 10.0.19043. 2 CVEs are tracked for this series.
Windows 10-21h1.x — All releases
| Version | Released | Active support | EOL date | Latest patch | Status | Alert me |
|---|---|---|---|---|---|---|
| 10-21h1 | May 18, 2021 | Dec 13, 2022 | Dec 13, 2022 | 10.0.19043 | EOL |
CVEs affecting Windows 10-21h1.x (2)
| CVE | Severity | CVSS | EPSS | KEV | Cycle | Description | Published |
|---|---|---|---|---|---|---|---|
| CVE-2021-36958 | HIGH | 7.8 | 30.79% | — | 10-21h1 | A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file … | Aug 12, 2021 |
| CVE-1999-0524 | MEDIUM | 4.0 | 32.15% | — | 10-21h1 | ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts. | Aug 1, 1997 |
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[](https://eolcanary.com/explore/windows/10-21h1)Frequently asked questions
Is Windows 10-21h1 end of life?
Yes. All Windows 10-21h1.x releases have reached end of life and no longer receive security patches. There are 2 known CVEs affecting Windows 10-21h1.x. Migrate to a supported version as soon as possible.
What CVEs affect Windows 10-21h1?
There are 2 CVEs tracked for Windows 10-21h1.x. See the full list above with CVSS and EPSS scores.
What is the latest Windows 10-21h1 version?
The latest Windows 10-21h1.x patch release is 10.0.19043. Always run the latest patch to benefit from all security fixes.
When was Windows 10-21h1 first released?
Windows 10-21h1 was released on May 18, 2021. See the full version timeline in the table above.
Is it safe to run Windows 10-21h1 in production?
No. Windows 10-21h1 has reached end of life and security vulnerabilities are no longer patched. Upgrade to a supported version immediately.
Data sourced from endoflife.date · CVE data from NVD · EPSS from FIRST.org · KEV from CISA