Microsoft has released updates to address multiple vulnerabilities in Microsoft software. A remote attacker could exploit some of these vulnerabilities to take control of an affected system.

The April security release consists of security updates for the following software:

• Adobe Flash Player
• Internet Explorer
• Microsoft Edge
• Microsoft Windows
• Microsoft Office and Microsoft Office Services and Web Apps
• ChakraCore
• ASP.NET
• Microsoft Exchange Server
• Team Foundation Server
• Azure DevOps Server
• Open Enclave SDK
• Windows Admin Center

CERT Bulgaria recommends users and administrators to review Microsoft's April 2019 Security Update Summary and Deployment Information and apply the necessary updates.

https://portal.msrc.microsoft.com/en-us/security-guidance/releasenotedetail/18306ed5-1019-e911-a98b-000d3a33a34d

https://support.microsoft.com/en-us/help/20190409/security-update-deployment-information-april-9-2019