Is Microsoft Exchange Server 4.0.996 patched?
Summary iPlain-English security status for Microsoft Exchange Server 4.0.996, built from its CVEs, active-exploitation data, end-of-life date and latest release.
Microsoft Exchange Server 4.0.996 is part of the 4.0 release line. No known vulnerabilities affect it in our data. The latest supported Microsoft Exchange Server release is 15.2.2562.43.
Known issues affecting 4.0.996
None found for this version. ✓
Other Microsoft Exchange Server versions
Check another release line of Microsoft Exchange Server.
Frequently asked
Is Microsoft Exchange Server 4.0.996 patched?
Microsoft Exchange Server 4.0.996 is end-of-life and no longer receives security patches. Move to 15.2.2562.43.
What is the latest version of Microsoft Exchange Server?
The latest supported Microsoft Exchange Server release is 15.2.2562.43.
Is Microsoft Exchange Server 4.0.996 still receiving security updates?
No — Microsoft Exchange Server 4.0.996 is on the 4.0 line, which reached end-of-life and no longer receives security updates. Upgrade to 15.2.2562.43 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 Microsoft's official advisory before you patch or upgrade — Microsoft Exchange Server official site ↗