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Keeping with its Patch Tuesday tradition, Microsoft has just released 50 security patches for a host of software products and services, including .NET Core and Visual Studio, Microsoft Office, Windows Defender, Windows Codecs Library, 3D Viewer, and Windows HTML Platform. Today’s release included patches for RCE, Elevation of Privilege, DoS, Spoofing, Information Disclosure, and Security Feature Bypass vulnerabilities.

In terms of severity, 45 of the 50 CVEs were marked “Important” and five “Critical.” Among these were seven zero-day vulnerabilities, six of which had already been exploited in the wild. Eight of the security flaws fixed today were reported by the Zero Day Initiative (ZDI). Additionally, Microsoft acknowledged reports from Google Project Zero, Google’s Threat Analysis Group, Check Point Research, Kaspersky, and FireEye, among other contributors.

Here’s an overview of the seven zero-day vulnerabilities and other noteworthy flaws fixed in June’s patch rollout.

Today, the second Tuesday of May, is Microsoft’s Patch Tuesday. This month’s patch release includes fixes for 55 CVEs – 50 classified as Important, one moderate, and four marked as critical. Microsoft also patched three zero-day vulnerabilities that were publicly disclosed but not yet exploited at the time of this release. The 55 fixes touch on various Microsoft products and services, including Exchange Server, Skype for Business, Visual Studio, MS Office, .NET Core, SharePoint Server, and Hyper-V. Along with May’s patch cycle, Microsoft also rolled out cumulative updates for all supported versions of Windows. The freshly updated Windows 10 OS builds 19041.895 and 19042.895 mostly feature enhanced security for Windows System Core Components, browsers, and other basic functions, plus a couple of new peripheral drivers and UI elements. Let’s get back to the security flaws addressed in this month’s patch dump.

Microsoft Patch Tuesday started early this month with an out-of-band patch release on March 2. This week’s batch fixes a total of 89 CVEs; among these are the seven out-of-band fixes from last week, ten ‘critical’ fixes, and 72 marked as ‘important.’ Two of the patches address separate zero-day vulnerabilities, one of which had already been exploited in the wild. This month’s patches cover a wide range of Microsoft products and services, including Azure, Office products, and Windows internet browsers.

Microsoft just rolled out its monthly patches and updates in what has now become known as Microsoft Patch Tuesday. On February 9, Microsoft released fixes for 56 security flaws, including a zero-day vulnerability that had already been exploited in the wild.