Msexchange 2003 · Version Status
Msexchange 2003 End of Life Date
Msexchange 2003 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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Msexchange 2003 is past end of life. This version no longer receives security patches. 4414 days past EOL — migrate to a supported version immediately.
EOL Date
Apr 8, 2014
4414 days past EOL
Latest Release
6.5.7654.4
Standard release
Release Date
Sep 28, 2003
Msexchange 2003 series
| Version | Latest | EOL Date | Status |
|---|
| 4.0 |
4.0.996 |
Supported |
Active |
| 5.0 |
5.0.1460 |
Jan 10, 2006 |
EOL |
| 5.5 |
5.5.2653 |
Jan 10, 2006 |
EOL |
| 2000 |
6.0.6620.7 |
Jan 11, 2011 |
EOL |
| → 2003 |
6.5.7654.4 |
Apr 8, 2014 |
EOL |
| 2007 |
8.3.517.0 |
Apr 11, 2017 |
EOL |
| 2010 |
14.3.513.0 |
Oct 13, 2020 |
EOL |
| 2013 |
15.0.1497.48 |
Apr 11, 2023 |
EOL |
What does Msexchange 2003 end of life mean?
When Msexchange 2003 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: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Msexchange 2003 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Msexchange subscription or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Msexchange 2003 reach end of life?
Msexchange 2003 reached end of life on April 8, 2014. This version is no longer receiving security patches.
Is Msexchange 2003 still supported?
No. Msexchange 2003 reached end of life on April 8, 2014 and is no longer receiving security patches.
What should I upgrade to from Msexchange 2003?
The recommended upgrade from Msexchange 2003 is
Msexchange subscription — the latest actively supported version. Check the
Msexchange full timeline for all supported versions.
What are the security risks of running Msexchange 2003 past EOL?
When Msexchange 2003 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL Msexchange should migrate immediately or implement compensating controls.