Microsoft’s Patch Tuesday for March addressed 64 vulnerabilities, 17 of which were rated critical, 45 important, one moderate, and another low in severity. Two of these vulnerabilities, CVE-2019-0797 and CVE-2019-0808, were reported to have been actively exploited in the wild. The patches addressed security flaws in a number of Microsoft products and services: .NET Framework, Edge, Exchange, Internet Explorer, Office, Office Services and Web Apps, NuGet, Team Foundation Server, and Windows. Seven of the vulnerabilities were disclosed via Trend Micro’s Zero Day Initiative (ZDI).