Is Microsoft Exchange Server 8.3.517.0 patched?
Summary iPlain-English security status for Microsoft Exchange Server 8.3.517.0, built from its CVEs, active-exploitation data, end-of-life date and latest release.
Microsoft Exchange Server 8.3.517.0 is part of the 8.3 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 8.3.517.0
None found for this version. ✓
Other Microsoft Exchange Server versions
Check another release line of Microsoft Exchange Server.
Frequently asked
Is Microsoft Exchange Server 8.3.517.0 patched?
Microsoft Exchange Server 8.3.517.0 is on the latest patch of its cycle with no known affecting vulnerabilities.
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 8.3.517.0 still receiving security updates?
Yes — the 8.3 line is still supported and receiving security updates. The latest release is 15.2.2562.43.
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 ↗