Windows 8.1: 5 5vulnerabilities: 14 critical and 41 important.CVE-2021-28343 - Remote Procedure Call Runtime Remote Code Execution Vulnerability.CVE-2021-28339 - Remote Procedure Call Runtime Remote Code Execution Vulnerability.CVE-2021-28338 - Remote Procedure Call Runtime Remote Code Execution Vulnerability.CVE-2021-28337 - Remote Procedure Call Runtime Remote Code Execution Vulnerability.CVE-2021-28336 - Remote Procedure Call Runtime Remote Code Execution Vulnerability.CVE-2021-28335 - Remote Procedure Call Runtime Remote Code Execution Vulnerability.CVE-2021-28333 - Remote Procedure Call Runtime Remote Code Execution VulnerabilityĬVE-2021-28334Â - Remote Procedure Call Runtime Remote Code Execution Vulnerability.CVE-2021-28332 - Remote Procedure Call Runtime Remote Code Execution Vulnerability.CVE-2021-28331 - Remote Procedure Call Runtime Remote Code Execution Vulnerability.CVE-2021-28330 - Remote Procedure Call Runtime Remote Code Execution Vulnerability.CVE-2021-28329 - Remote Procedure Call Runtime Remote Code Execution Vulnerability.CVE-2021-28315 - Windows Media Video Decoder Remote Code Execution Vulnerability.CVE-2021-27095Â - Windows Media Video Decoder Remote Code Execution Vulnerability.

Windows 7Â Â (extended support only): 50 vulnerabilities: 14 critical and 36 important.

Windows 10 version 1909 for Home customers runs out of support after the May 2021 Patch Day.

Several updates have known issues, including those for Windows 7 and 8.1, various Windows 10 versions, Windows Server versions, and Microsoft Exchange Server.

If you manage Exchange Servers, check out this blog post on the April 2021 security updates.

Microsoft released security updates for other company products including Azure, Microsoft Edge, Exchange Server, Microsoft Office, Visual Studio and Visual Studio Code, and Windows Media Player.

Security updates are available for all supported versions of Windows (client and server).

Microsoft office updates failing