Microsoft Exchange Server SE CU1 remains without a firm release date as AI-assisted security reviews add to testing and ...

Microsoft recently acknowledged a vulnerability affecting its email and calendar service Exchange that could allow an attacker to gain significant control over particular organizations' email servers ...

Parts of the federal enterprise are likely susceptible to the flaw that allows hackers to hijack on-premises versions of Active Directory. CISA plans to release an emergency directive on Thursday, ...

Microsoft Exchange customers have been warned about a new high-severity vulnerability, which could allow an attacker to escalate privileges within an organization’s connected cloud environment. The ...

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As part of August’s Patch Tuesday, Microsoft released security updates that address 398 new vulnerabilities. Alongside ...

Russian state hackers are using a maximum-severity vulnerability in Microsoft’s Outlook’s Exchange Server to backdoor unpatched machines and steal credentials and other confidential information from ...

Microsoft on Thursday disclosed a zero-day vulnerability in Exchange that's under active exploitation, but four days later customers are still awaiting a patch. The zero-day, tracked as CVE-2026-42897 ...

Administrators with hybrid Exchange Server environments are urged by Microsoft and the US Cybersecurity and Infrastructure Security Agency (CISA) to quickly plug a high-severity vulnerability or risk ...