Summary. A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly. An attacker who successfully exploited this vulnerability could take control of an affected system.

This security update addresses the vulnerability by correcting the way that .NET Framework handles high-load/high-density network connections. To learn more about this vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2018-8360. Important.

Applies to: Microsoft .NET Framework 4.8. IMPORTANT. As a reminder to advanced IT administrators, updates to .NET Framework 3.5 for Windows 8.1 and Windows Server 2012 R2 should only be applied on systems where .NET Framework 3.5 is present and enabled.

Resolves a remote code execution vulnerability that exists when Microsoft .NET Framework does not validate input correctly.

This security update addresses the vulnerability by correcting the way that .NET Framework handles high-load/high-density network connections. To learn more about this vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2018-8360. Important.