Microsoft Exchange users are urged to mitigate a zero-day vulnerability that CISA has confirmed is under active exploitation.

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 ...

Several scenarios and reasons exist for regularly backing up an Exchange Server database, from data corruption to accidentally deleting files to system crashes to cybersecurity attacks. Microsoft's ...

Microsoft on Tuesday released three security updates, two of which address critical flaws in its Exchange e-mail server and third-party software in Windows. Critical vulnerabilities in Microsoft ...

Microsoft has disclosed a new security vulnerability impacting on-premise versions of Exchange Server that it said has come ...

On Monday, Microsoft released the last major update for Exchange Server 2019. The aging Exchange Server is set to lose support on Oct. 14, 2025. This final update (2025 H1 Cumulative Update (CU15) ...

Update 26.3.2024: While not on the same scale as 2021's Microsoft Exchange Server hack (see below this update), security problems impacting Exchange Server have reemerged. In March 2024's monthly ...

Microsoft warned customers today that Exchange Server 2013 will reach its extended end-of-support (EOS) date 90 days from now, on April 11, 2023. Exchange Server 2013 was released in January 2013 and ...

Two of the three bulletins were tagged as "critical," including MS06-019, which patches a flaw in Exchange Server, and MS06-020, which involved the third-party product, Adobe's Flash Player. "This ...

Microsoft delivered fixes for issues affecting everything from Windows to Office, .NET, and SQL Server, and several patches ...