Microsoft warned Exchange Server customers about critical OWA vulnerability CVE-2026-42897 affecting on-premises deployments.

On Thursday, Microsoft shared mitigations for a high-severity Exchange Server vulnerability exploited in attacks that allow ...

A newly discovered zero-day vulnerability in Microsoft Exchange Server has experts declaring an emergency and urging CSOs to ...

Microsoft has reminded admins that Exchange 2016 and Exchange 2019 will reach the end of extended support in October and shared guidance for those who need to decommission outdated servers. Exchange ...

Microsoft reminds us of the imminent end of support for Exchange Server 2016 and 2019. In nine months, the manufacturer will pull the plug. In a tech community post, Microsoft writes that the ...

Microsoft announced this week that it has changed its support policy for the Edge role on Exchange Server 2016, but only when it's used on Windows Server 2016. The Edge Transport server role of ...

The zero-day vulnerability affects on-premises installations for all versions of Exchange Server 2016, 2019 and Subscription ...

A zero-day vulnerability exists in Microsoft Exchange, which attackers are already exploiting. Admins should act quickly.

Microsoft released a large batch of updates for all supported versions of Exchange Server. The difference between a CU and an RU seems to be that the RU is an update that also includes security ...

While the planned phase-out of Microsoft Exchange 2016 and Exchange 2019 is many months away, evaluate your organization’s needs now to avoid hassles down the road. October 2025 is going to be a big ...