Security researchers have discovered a new Microsoft Office zero-day vulnerability that is being used in attacks to execute malicious PowerShell commands via Microsoft Diagnostic Tool (MSDT) simply by opening a Word document.
The vulnerability, which has yet to receive a tracking number and is referred to by the infosec community as 'Follina,' is leveraged using malicious Word documents that execute PowerShell commands via the MSDT.
引用
https://www.bleepingcomputer.com/news/security/new-microsoft-office-zero-day-used-in-attacks-to-execute-powershell/