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.

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

Outlook 2010-2016 allows you to add multiple Exchange accounts (from the same Exchange server / domain) to a single Outlook Profile. MS has a KB article that says this is unsupported and can cause ...

I am starting the planning process for upgrading my company from an NT4 Domain to Active Directory as well as from Exchange 5.5. to Exchange 2003.<BR><BR>Our current process is server consolidation ...

‘These vulnerabilities are worse than ProxyLogon, the Exchange vulnerabilities revealed in March - they are more exploitable, and organizations largely haven’t patched,’ writes security research Kevin ...

Microsoft Exchange 2013 and newer versions are vulnerable to a privilege escalation attack that gives anyone with a mailbox a way to gain domain administrator rights at potentially 90% of ...