Microsoft released the November 2019 Office security updates, bundling a total of 17 security updates and five cumulative updates for seven different products. 15 of them patching flaws allowing unauthorized access to information. The security updates are available via the Download Center and the Microsoft Update platform, with more info available for each of them is available after clicking the linked knowledge base articles to download the update packages for each product. Two other patches issued by Microsoft today fix a security feature bypass and a spoofing vulnerability discovered in the SharePoint Server 2019 Language Pack and the Office Online Server.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-releases-the-november-2019-security-updates-for-office/