Exchange Server 2016 and 2019 need V2 security updates for elevation flaws

Administrators of on-premises Exchange Server 2016 and 2019 must install V2 security updates that fix weak authorization vulnerabilities. Access to the patches requires Period 2 ESU enrollment.

• V2 patches address weak authorization flaws in Exchange Server
• Period 2 ESU enrollment is required to get the updates
• The requirement applies to on-premises Exchange Server 2016 and 2019