Microsoft Office 2021 · Version Status
Microsoft Office 2021 End of Life Date
Microsoft Office 2021 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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Microsoft Office 2021 reaches end of life on October 13, 2026. Plan your migration now — 112 days remaining.
📅 Get reminded before Microsoft Office 2021 reaches EOL on October 13, 2026 — alerts 90, 30 & 7 days out.
EOL Date
Oct 13, 2026
112 days remaining
Latest Release
—
Standard release
Release Date
Oct 5, 2021
Microsoft Office 2021 series
Attack Surface
10/30 Medium tier
CISA KEV Exposure
0/20 Not in KEV
Extended Support
0/10 Available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build.
Methodology → ·
View score card →
Extended Support
Extended Microsoft Office 2021 support is available
Commercial vendors offer security patches beyond EOL — compare your options.
Compare Options →
All Microsoft Office Versions
| Version | Latest | EOL Date | Status |
|---|
| 2007 |
— |
Oct 10, 2017 |
EOL |
| 2008-for-mac |
— |
Apr 9, 2013 |
EOL |
| 2010 |
— |
Oct 13, 2020 |
EOL |
| 2011-for-mac |
— |
Oct 10, 2017 |
EOL |
| 2013 |
— |
Apr 11, 2023 |
EOL |
| 2016 |
— |
Oct 14, 2025 |
EOL |
| 2019 |
— |
Oct 14, 2025 |
EOL |
| → 2021 |
— |
Oct 13, 2026 |
Warning |
What does Microsoft Office 2021 end of life mean?
When Microsoft Office 2021 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 Microsoft Office 2021 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Microsoft Office 2024 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Microsoft Office 2021 reach end of life?
Microsoft Office 2021 reached end of life on October 13, 2026. That is 112 days remaining.
Is Microsoft Office 2021 still supported?
Microsoft Office 2021 is still supported but approaching end of life on October 13, 2026. Begin planning your migration now.
What should I upgrade to from Microsoft Office 2021?
The recommended upgrade from Microsoft Office 2021 is
Microsoft Office 2024 — the latest actively supported version. Check the
Microsoft Office full timeline for all supported versions.
What are the security risks of running Microsoft Office 2021 past EOL?
When Microsoft Office 2021 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 Microsoft Office should migrate immediately or implement compensating controls.