Microsoft released the May 2019 Office Update today, which consists of 9 security updates and 25 non-security updates. As some of the Microsoft Office security updates resolve critical vulnerabilities, it is strongly advised to install them as soon as possible. Seven of the nine updates issued today by Microsoft, seven fix remote code execution vulnerabilities within Office 2016, Word 2016, Office 2013, Office 2010, Office Online Server, SharePoint Enterprise Server 2016, and SharePoint Foundation 2013. The security patches issued today also fix an elevation of privilege vulnerability affecting Microsoft SharePoint Server 2019 and a spoofing vulnerability.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-releases-may-2019-office-updates-with-security-fixes/