MySQL 5.6.51 End of life

This release line no longer gets security fixes.

Upgrade to 9.7.4

The lowest fixed release that is still supported.

Known vulnerabilities

900 (0 critical, 14 high)

End of life

Yes, since 2021-02-28

Data as of

2026-10-24 19:22 UTC

Vulnerabilities

• CVE-2020-14878 high
• CVE-2025-21521 high
• CVE-2023-21912 high
• CVE-2021-35583 high
• CVE-2022-21600 high
• CVE-2021-2144 high
• CVE-2020-14828 high
• CVE-2020-14697 high
• CVE-2020-14678 high
• CVE-2020-14663 high

And 890 more with lower severity.

• 1 MySQL vulnerability is still under review and not included in this verdict.

Installed with apt, yum or another package manager? Your distribution may already have patched this without changing the version, so check its security tracker too.