Microsoft Exchange Subscription Edition SU11 End of Life Date
Microsoft Exchange Subscription Edition SU11 end-of-life date, support status, and CVE risk. Data reconciled from official vendor documentation and endoflife.date at every build; the source of each date is on the product page.
Microsoft Exchange subscription was released on July 1, 2025 and has no published end-of-life date yet. Its most recent patch is 15.2.2562.56, published October 13, 2026.
| Version | Latest | EOL Date | Status |
|---|---|---|---|
| 4.0 SP5 | 4.0.996 | Supported | EOL |
| 5.0 SP2 | 5.0.1460 | Jan 10, 2006 | EOL |
| 5.5 SP4 | 5.5.2653 | Jan 10, 2006 | EOL |
| 2000 SP3 | 6.0.6620.7 | Jan 11, 2011 | EOL |
| 2003 SP2 | 6.5.7654.4 | Apr 8, 2014 | EOL |
| 2007 SP3 UR23 | 8.3.517.0 | Apr 11, 2017 | EOL |
| 2010 SP3 UR32 | 14.3.513.0 | Oct 13, 2020 | EOL |
| 2013 CU23 SU21 | 15.0.1497.48 | Apr 11, 2023 | EOL |
What does Microsoft Exchange Subscription Edition SU11 end of life mean?
When Microsoft Exchange Subscription Edition SU11 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: A CVE-based scan does not show the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Some scanners flag unsupported versions of common products, but coverage varies, and none of them give you the date in advance. Running Microsoft Exchange Subscription Edition SU11 past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to Microsoft Exchange Subscription Edition SU11 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.