Is Samba 4.18.11 patched?
Current stable (4.25.1): 97/100
4.18.11 has 2 open critical-or-high vulnerabilities. Run 4.21.0 or later to clear them. See what 4.21.0 fixes →
Upgrade impact: Minor upgrade. Minor releases are usually backwards-compatible, but can add or change behaviour — test in staging before production.
Summary iPlain-English security status for Samba 4.18.11, built from its CVEs, active-exploitation data, end-of-life date and latest release.
Samba 4.18.11 is part of the 4.18 release line. 4 known vulnerabilities affect it. The minimum safe version is 4.21.0 — upgrade to it or later to clear the open critical/high issues. The 4.18 line reached end-of-life on 2024-09-02, so it no longer receives security patches. The latest supported Samba release is 4.25.1.
Known issues affecting 4.18.11
Exploited first, then by exploitation probability.
CVE-2026-4408 CRITICAL EPSS 3% → fixed in 4.21.0 CVE-2023-5568 MEDIUM EPSS 2% → fixed in 4.19.2 CVE-2026-2340 MEDIUM EPSS 1% → see advisory CVE-2026-3012 HIGH EPSS 0% → fixed in 4.21.0Other Samba versions
Check another release line of Samba.
Frequently asked
Is Samba 4.18.11 patched?
Samba 4.18.11 is end-of-life and no longer receives security patches. Move to 4.25.1.
What version should I upgrade Samba 4.18.11 to?
Upgrade Samba 4.18.11 to at least 4.21.0 to clear its 2 open critical-or-high vulnerabilities.
When does Samba 4.18 reach end-of-life?
Samba 4.18 reached end-of-life on 2024-09-02 and no longer receives security patches.
What is the latest version of Samba?
The latest supported Samba release is 4.25.1.
Is Samba 4.18.11 still receiving security updates?
No — Samba 4.18.11 is on the 4.18 line, which reached end-of-life on 2024-09-02 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.