Microsoft has released May 2021 security updates. A remote attacker could exploit some of these vulnerabilities to take control of an affected system. Microsoft has released updates to address these vulnerabilities.

For details, please refer to:

https://us-cert.cisa.gov/ncas/current-activity/2021/05/11/microsoft-releases-may-2021-security-updates

https://msrc.microsoft.com/update-guide/releaseNote/2021-May

https://msrc.microsoft.com/update-guide/deployments