Skype for Business Server 2019 · Version Status
Skype for Business Server 2019 End of Life Date
Skype for Business Server 2019 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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Skype for Business Server 2019 is past end of life. This version no longer receives security patches. 361 days past EOL — migrate to a supported version immediately.
EOL Date
Oct 14, 2025
361 days past EOL
Latest Release
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Standard release
Release Date
Oct 22, 2018
Skype for Business Server 2019 series
Lifecycle detail
Skype for Business Server 2019 was released on October 22, 2018 and support ended on October 14, 2025 — a supported lifespan of 7 years. It has been without security patches for 1 year.
Attack Surface
10/30 Medium tier
CISA KEV Exposure
20/20 Named in CISA 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 Skype for Business Server 2019 support is available
Commercial vendors offer security patches beyond EOL. Compare your options.
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All Skype for Business Server Versions
What does Skype for Business Server 2019 end of life mean?
When Skype for Business Server 2019 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 Skype for Business Server 2019 past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to Skype for Business Server Subscription Edition or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Skype for Business Server 2019 reach end of life?
Skype for Business Server 2019 reached end of life on October 14, 2025. This version is no longer receiving security patches.
Is Skype for Business Server 2019 still supported?
No. Skype for Business Server 2019 reached end of life on October 14, 2025 and is no longer receiving security patches.
What should I upgrade to from Skype for Business Server 2019?
The recommended upgrade from Skype for Business Server 2019 is
Skype for Business Server Subscription Edition — the latest actively supported version. Check the
Skype for Business Server full timeline for all supported versions.
What are the security risks of running Skype for Business Server 2019 past EOL?
When Skype for Business Server 2019 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 Skype for Business Server should migrate immediately or implement compensating controls.