A new high-severity security vulnerability is causing alarm among businesses that utilize hybrid Microsoft Exchange deployments, as both Microsoft and the US Cybersecurity and Infrastructure Security Agency (CISA) issue urgent advisories. This flaw—affecting Exchange Server 2016, 2019, and the...
A high-severity vulnerability, designated CVE-2025-53786, has sent urgent ripples through the IT and cybersecurity communities as organizations relying on Microsoft’s hybrid Exchange deployments face a new vector for privilege escalation and potential domain-wide compromise. Microsoft has...