This security update includes improvements and fixes that were a part of update KB4525242(released November 19, 2019) and addresses the following issues:
For more information about the resolved security vulnerabilities, please refer to the Security Update Guide.
Certain operations, such as rename , that you perform on files or folders that are on a Cluster Shared Volume (CSV) may fail with the error, “STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)”. This occurs when you perform the operation on a CSV owner node from a process that doesn’t have administrator privilege.| Do one of the following:
Microsoft is working on a resolution and will provide an update in an upcoming release.
Before installing this update Microsoft strongly recommends you install
the latest servicing stack update (SSU) for your operating system before
installing the latest Rollup. SSUs improve the reliability of the update
process to mitigate potential issues while installing the Rollup and applying
Microsoft security fixes. For general information about SSUs, see Servicing
stack updates and Servicing Stack
Updates (SSU): Frequently Asked Questions.If you are using Windows
Update, the latest SSU (KB4532920)
will be offered to you automatically. To get the standalone package for the
latest SSU, search for it in the Microsoft Update
Catalog. Install this
update Release Channel| Available| Next Step
Windows Update and Microsoft Update| Yes| None. This update will be downloaded and installed automatically from Windows Update.
Microsoft Update Catalog| Yes| To get the standalone package for this update, go to the Microsoft Update Catalog website.
Windows Server Update Services (WSUS)| Yes| This update will automatically synchronize with WSUS if you configure Products and Classifications as follows: Product : Windows Server 2012, Windows Embedded 8 Standard Classification : Security Updates
File information For a list of the files that are provided in this update, download the file information for update 4530691.