Oracle Database 21c · Version Status
Oracle Database 21c End of Life Date
Oracle Database 21c end-of-life date, support status, and CVE risk. Data reconciled from official vendor documentation and endoflife.date at every build; the source of each date is on the product page.
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Oracle Database 21c is actively supported. EOL date: July 31, 2027.
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EOL Date
Jul 31, 2027
266 days remaining
Latest Release
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Standard release
Release Date
Aug 13, 2021
Oracle Database 21c series
Where these dates come from
End of lifeJul 31, 2027Vendor's own page, read by our adapter · oracle.com · checked Nov 2, 2026high · 3 sources agree ReleaseAug 13, 2021Vendor's own page, checked by a person · oracle.com · checked Sep 10, 2026high · 2 sources agree Confidence: high = two or more independent sources agree (the vendor's page read by our adapter, a person's check against the vendor, the dataset the date came from); medium = one; low = the vendor page disagrees or our last read is stale.
How we source dates.
Lifecycle detail
Oracle Database 21 was released on August 13, 2021 and support is scheduled to end on July 31, 2027 — a planned supported lifespan of 6 years, in line with the 5 years and 3 months median for Oracle Database releases. It is not an LTS release; Oracle Database reserves longer patch windows for its LTS releases.
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 →
All Oracle Database Versions
What does Oracle Database 21c end of life mean?
When Oracle Database 21c 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: A CVE-based scan does not show the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Some scanners flag unsupported versions of common products, but coverage varies, and none of them give you the date in advance. Running Oracle Database 21c past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to Oracle Database 26ai or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Oracle Database 21c reach end of life?
Oracle Database 21c reaches end of life on July 31, 2027. That is 266 days remaining.
Is Oracle Database 21c still supported?
Yes, Oracle Database 21c is currently supported. The EOL date is July 31, 2027.
What should I upgrade to from Oracle Database 21c?
The recommended upgrade from Oracle Database 21c is
Oracle Database 26ai — the latest actively supported version. Check the
Oracle Database full timeline for all supported versions.
What are the security risks of running Oracle Database 21c past EOL?
When Oracle Database 21c reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no vendor fix. A CVE-based scan does not show this — it is the CVE blind spot; some scanners flag unsupported versions of common products, but coverage varies and none give the date in advance. Organizations running EOL Oracle Database should migrate immediately or implement compensating controls.