IMPORTANT Some customers who use Windows Server 2008 R2 SP1 and have activated their ESU multiple activation key (MAK) add-on before installing the January 14, 2020 updates might need to re-activate their key. Re-activation on the affected devices should only be required once. For information on activation, see this blog post.

Use the .NET Framework Cleanup Tool to uninstall the .NET Framework versions 1.0, 1.1, 2.0, 3.0, and 3.5 Note The cleanup tool does not let you remove the .NET Framework 2.0 in Windows Vista or later versions because the .NET Framework is installed as an operating system component.

A vulnerability in certain .NET Framework APIs that parse URLs. An attacker who successfully exploits this vulnerability could use it to bypass security logic that's intended to make sure that a user-provided URL belonged to a specific host name or a subdomain of that host name.

From the Overview page, select Office apps and on that page, find the Microsoft 365 product you want to install and select Install. To install Microsoft 365 in a different language, or to install the 64-bit version, use the dropdown to find more options. Choose the language and bit version you want, and then select Install.

Resolves a vulnerability in the Microsoft .NET Framework that could allow remote code execution when the .NET Framework fails to properly validate input before loading libraries. An attacker who successfully exploits this vulnerability could take control of an affected system. The attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

The updates are now available for installation through WSUS. Update deployment information. For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:

Resolves a vulnerability in the Microsoft .NET Framework that could allow remote code execution when the .NET Framework fails to properly validate input before loading libraries. An attacker who successfully exploits this vulnerability could take control of an affected system. The attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Faulting application path: C:\Windows\SysWOW64\CCM\CcmExec.exe Faulting module path: C:\Windows\SysWOW64\ntdll.dll. Cause. This issue occurs because an access violation occurs in the Ntdll.dll module, and then the wrong function is called in the Caltrack.dll module. Resolution

View products that this article applies to. Introduction. This August 2017 Update for Windows Server 2008 Service Pack 2 (SP2), Windows 7 Service Pack 1 (SP1) and Windows Server 2008 R2 SP1 includes cumulative reliability improvements in the .NET Framework 4.5.2.

The updates are now available for installation through WSUS. Prerequisites. To apply this update, you must have .NET Framework 4.5.2 installed. Restart requirement