Microsoft Configuration Manager 2503 · Version Status
Microsoft Configuration Manager 2503 End of Life Date
Microsoft Configuration Manager 2503 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.
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Microsoft Configuration Manager 2503 is past end of life. This version no longer receives security patches. 9 days past EOL — migrate to a supported version immediately.
EOL Date
Sep 30, 2026
9 days past EOL
Latest Release
2503
Standard release
Release Date
Mar 31, 2025
Microsoft Configuration Manager 2503 series
Lifecycle detail
Microsoft Configuration Manager 2503 was released on March 31, 2025 and support ended on September 30, 2026 — a supported lifespan of 1 year and 6 months, in line with the 1 year and 6 months median for Microsoft Configuration Manager releases. It has been without security patches for 9 days.
Attack Surface
10/30 Medium tier
CISA KEV Exposure
0/20 Not in KEV
Extended Support
0/10 Available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build.
Methodology → ·
View score card →
Extended Support
Extended Microsoft Configuration Manager 2503 support is available
Commercial vendors offer security patches beyond EOL. Compare your options.
Compare Options →
All Microsoft Configuration Manager Versions
| Version | Latest | EOL Date | Status |
|---|
| 2303 |
2303 |
Oct 10, 2024 |
EOL |
| 2309 |
2309 |
Apr 9, 2025 |
EOL |
| 2403 |
2403 |
Oct 22, 2025 |
EOL |
| 2409 |
2409 |
Jun 6, 2026 |
EOL |
| → 2503 |
2503 |
Sep 30, 2026 |
EOL |
| 2509 |
2509 |
May 12, 2027 |
Active |
| 2603 |
2603 |
Nov 5, 2027 |
Active |
| 2609 |
2609 |
Mar 28, 2028 |
Active |
What does Microsoft Configuration Manager 2503 end of life mean?
When Microsoft Configuration Manager 2503 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 Configuration Manager 2503 past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to Microsoft Configuration Manager 2609 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Microsoft Configuration Manager 2503 reach end of life?
Microsoft Configuration Manager 2503 reached end of life on September 30, 2026. This version is no longer receiving security patches.
Is Microsoft Configuration Manager 2503 still supported?
No. Microsoft Configuration Manager 2503 reached end of life on September 30, 2026 and is no longer receiving security patches.
What should I upgrade to from Microsoft Configuration Manager 2503?
The recommended upgrade from Microsoft Configuration Manager 2503 is
Microsoft Configuration Manager 2609 — the latest actively supported version. Check the
Microsoft Configuration Manager full timeline for all supported versions.
What are the security risks of running Microsoft Configuration Manager 2503 past EOL?
When Microsoft Configuration Manager 2503 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no vendor fix. A CVE-based scan does not show this — it is the CVE blind spot; some scanners flag unsupported versions of common products, but coverage varies and none give the date in advance. Organizations running EOL Microsoft Configuration Manager should migrate immediately or implement compensating controls.