Microsoft July 2021 security updates have been released and consist of 117 CVEs.
Severity:
13 are rated Critical
103 are rated Important
1 is rated moderate   

According to Microsoft, six of these bugs are publicly known and four are under active attack at the time of release.
See Zero Day Initiative for more details: https://www.zerodayinitiative.com/blog/2021/7/13/the-july-2021-security-update-review

On July 6 an Out-of-Band update was released to address CVE-2021-34527, Windows Print Spooler Remote Code Execution Vulnerability for Windows 10 Versions 21H1, 20H1, 2004, 1909, 1809, 1803, 1507, and Windows 8.1
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34527

Download the update by going to Settings > Update & Security > Windows Update. 
 The link to download and install the update can be found in the Optional updates available area.  
To find the standalone package, go to the Microsoft Update Catalog website.
 https://www.catalog.update.microsoft.com/Search.aspx