Microsoft issues fix for CVE-2026-96940, a high-severity Exchange privilege-escalation flaw Attackers with compromised user credentials could access other employees’ mailboxes and emails No active ...

Microsoft investigates an Exchange admin center outage affecting some admins with internal server errors as a rollback begins ...

Microsoft patches CVE-2026-96940, which lets authenticated attackers read other users' Exchange mailboxes within the same ...

Microsoft released out-of-band Exchange Server security update that fixes a high-severity mailbox access vulnerability ...

Earlier this month, Microsoft announced that malicious actors were leveraging zero-day exploits to infiltrate on-premises versions of Microsoft Exchange Server. If your company utilizes an Exchange ...

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) ...

Microsoft Exchange Server is Microsoft's email, calendaring, contact, scheduling and collaboration platform. It's deployed on the Windows Server operating system (OS) for business use. Microsoft ...

Microsoft has identified one of the critical vulnerabilities in Exchange Server that the company disclosed in February's Patch Tuesday update as actually being a zero-day threat that attackers are ...

Because Exchange Server depends on Microsoft Internet Information Services (IIS) to connect over the Web, IIS must be running properly to keep email communication flowing. Enhance your IIS ...