November 10, 2020—KB4586808 (Security-only update)

దీనికి వర్తిస్తుంది: Windows Server 2012Windows Embedded 8 Standard

Improvements and fixes


This security update includes quality improvements. Key changes include:

  • Corrects the DST start date for the Fiji Islands to December 20, 2020.
  • Addresses a security vulnerability by preventing applications that run as a SYSTEM account from printing to local ports that point to a file. Failing print jobs log error 50, “The request is not supported.” in event ID 372 in the PrintService\Admin event log. To address this issue going forward, make sure your applications or services run as a specific user or service account. 
  • Security updates to Windows Graphics, Windows Silicon Platform, Windows Authentication, Windows Core Networking, Windows Peripherals, Windows Network Security and Containers, Windows Hybrid Storage Services, and Windows Remote Desktop.

For more information about the resolved security vulnerabilities, please refer to the Security Update Guide.

Known issues in this update


Symptom Workaround
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:

  • Perform the operation from a process that has administrator privilege.
  • Perform the operation from a node that doesn’t have CSV ownership.

Microsoft is working on a resolution and will provide an update in an upcoming release.

After installing this update on domain controllers (DCs) and read-only domain controllers (RODCs) in your environment, you might encounter Kerberos authentication and ticket renewal issues. This is caused by an issue in how CVE-2020-17049 was addressed in these updates.

For specific symptoms and behaviors related to this issue, please see the Windows release health page. 

Note This issue only affects Windows Servers, Windows 10 devices and applications in enterprise environments.

This issue is resolved in KB4594438.

How to get this update


Before installing this update

We strongly recommend that 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 use Windows Update, the latest SSU (KB4566426) 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 No See the other options below.
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 sync with WSUS if you configure Products and Classifications as follows:

Product:  Windows Server 2012, Windows Embedded 8 Standard

Classification: Security Update

 

File information

For a list of the files that are provided in this update, download the file information for cumulative update 4586808.