Synced 02 Nov 2026 13:39 UTC Account

Is Samba 4.21.10 patched?

Samba · cycle 4.21 · end of life
4.21.1040/100End of life

Current stable (4.25.1): 97/100

Health score40/100
Open issues1
Exploited now0
Cycle 4.21 EOL2026-03-31
Latest release4.25.1

Summary iPlain-English security status for Samba 4.21.10, built from its CVEs, active-exploitation data, end-of-life date and latest release.

Samba 4.21.10 is part of the 4.21 release line. 1 known vulnerability affects it. The 4.21 line reached end-of-life on 2026-03-31, so it no longer receives security patches. The latest supported Samba release is 4.25.1.

Known issues affecting 4.21.10

Exploited first, then by exploitation probability.

CVE-2026-2340 MEDIUM EPSS 1% → see advisory

Other Samba versions

Check another release line of Samba.

Samba 4.25.1Samba 4.24.8Samba 4.23.13Samba 4.22.11Samba 4.20.8Samba 4.19.9Samba 4.18.11Samba 4.17.12Samba 4.16.11Samba 4.15.13Samba 4.14.14Samba 4.13.17Samba 4.12.15Samba 4.11.17Samba 4.10.18Samba 4.9.18Samba 4.8.12Samba 4.7.12Samba 4.6.16Samba 4.5.16Samba 4.4.16Samba 4.3.13Samba 4.2.14Samba 4.1.23Samba 4.0.26Samba 3.6.25Samba 3.5.22Samba 3.4.17Samba 3.3.16Samba 3.2.15Samba 3.0.37

Frequently asked

Is Samba 4.21.10 patched?

Samba 4.21.10 is end-of-life and no longer receives security patches. Move to 4.25.1.

When does Samba 4.21 reach end-of-life?

Samba 4.21 reached end-of-life on 2026-03-31 and no longer receives security patches.

What is the latest version of Samba?

The latest supported Samba release is 4.25.1.

Is Samba 4.21.10 still receiving security updates?

No — Samba 4.21.10 is on the 4.21 line, which reached end-of-life on 2026-03-31 and no longer receives security updates. Upgrade to 4.25.1 or later to stay supported.

Informational only, from public data (NVD · CISA KEV · EPSS · endoflife.date), and can lag or miss vendor-specific fixes. Always confirm against Samba's official advisory before you patch or upgrade.