Below are key resources documenting this recent monthly Microsoft Patch Tuesday release

This month, we got patches for 74 vulnerabilities in total. One of them has been exploited and two vulnerabilities have been made public before today. The known exploited vulnerability (CVE-2019-0676) may lead to information disclosure and affects Internet Explorer 10 on Windows Server 2012 and Internet Explorer 11 on Windows 7, 8.1 and 10 and Windows Server 2008, 2012, 2016 and 2019.  From two previously known vulnerabilities, one (CVE-2019-0636) may also lead to information disclosure and the other, CVE-2019-0686, is a privilege escalation vulnerability on Microsoft Exchange 2010, 2013, 2016 and 2019. This vulnerability was well detailed by Bojan in this diary.