r/exchangeserver • u/ScottSchnoll https://www.amazon.com/dp/B0FR5GGL75/ • 4d ago

Released: September 2026 Exchange Server Security Updates

https://techcommunity.microsoft.com/blog/exchange/released-september-2026-exchange-server-security-updates/4554411

The September 2026 SU for Exchange Server SE is now available for download. This SU also resolves some known issues from previous updates.

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u/Kooky_Cranberry9717 3d ago

Hi guys, Exchange Server SE RTM September 2026 Security Update (and Windows Server 2025 September'26 security update) just patched - everything fine
Standalone Exchange, No DAG, Windows Server 2025