Memcached 1.x — End of Life
ActiveMemcached 1.x is partially supported: only 1.6 still receives security fixes. The most recent release in this series is 1.6.45. No CVE is currently tracked for Memcached 1.x.
Memcached 1.x — All releases
| Version | Released | Active support | EOL date | Latest patch | Status | Alert me |
|---|---|---|---|---|---|---|
| 1.6 | Mar 8, 2020 | — | No | 1.6.45 | Active | |
| 1.5 | Jul 21, 2017 | — | Mar 9, 2020 | 1.5.22 | EOL | |
| 1.4 | Jul 9, 2009 | — | Jul 21, 2017 | 1.4.39 | EOL |
CVEs affecting Memcached 1.x (0)
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[](https://eolcanary.com/explore/memcached/1)Frequently asked questions
Is Memcached 1 end of life?
Partially. 2 of the 3 Memcached 1.x releases have reached end of life. Still supported: 1.6.
What CVEs affect Memcached 1?
No CVEs are currently tracked for Memcached 1.x in the NVD data we monitor.
What is the latest Memcached 1 version?
The latest Memcached 1.x patch release is 1.6.45, released on July 9, 2026. Always run the latest patch to benefit from all security fixes.
When was Memcached 1 first released?
Memcached 1.4 was released on July 9, 2009. See the full version timeline in the table above.
Is it safe to run Memcached 1 in production?
Only on a supported release (1.6). Make sure you run the latest patch (1.6.45) to have all security fixes applied.
Data sourced from endoflife.date · CVE data from NVD · EPSS from FIRST.org · KEV from CISA