August 11, 2020—KB4565349 (OS Build 17763.1397)

Applies to: Windows 10, version 1809, all editionsWindows Server version 1809Windows Server 2019, all editions

Highlights


  • Updates to improve security when using Internet Explorer and Microsoft Edge Legacy.
  • Updates to improve security when Windows performs basic operations.
  • Updates to improve security when using input devices (such as a mouse, keyboard, or pen).
  • Updates for verifying usernames and passwords.
  • Updates for storing and managing files.

Improvements and fixes


This security update includes quality improvements. Key changes include:

  • Addresses an issue in Universal Windows Platform (UWP) apps that allows single sign-on authentication when an app does not have the Enterprise Authentication capability. With the release of CVE-2020-1509, UWP applications might begin prompting the user for credentials. 
  • Provides the ability for a Windows Embedded Compact 2013 OS instance and applications to operate on top of Windows 10 IoT Core using Windows CE App Container
  • Addresses an issue with printing to a local port that is configured as a Universal Naming Convention (UNC) path or a shared network printer. These ports no longer appear in Control Panel on the Ports tab of the Print Server Properties dialog box. This issue occurs after installing Windows Updates released between May 2020 and July 2020.
  • Security updates to the Microsoft Scripting Engine, Internet Explorer, Windows Graphics, Windows Input and Composition, Windows Media, Windows Shell, the Windows Wallet Service, Microsoft Edge Legacy, Windows Cloud Infrastructure, Windows Authentication, the Windows AI Platform, Windows Fundamentals, Windows Kernel, Windows Storage and Filesystems, Windows Update Stack, Windows File Server and Clustering, Windows Hybrid Storage Services, Windows App Platform and Frameworks, the Microsoft JET Database Engine, and Windows Remote Desktop.

If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.

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

Known issues in this update


Symptom Workaround
After installing KB4493509, devices with some Asian language packs installed may receive the error, "0x800f0982 - PSFX_E_MATCHING_COMPONENT_NOT_FOUND."
  1. Uninstall and reinstall any recently added language packs. For instructions, see Manage the input and display language settings in Windows 10.
  2. Select Check for Updates and install the April 2019 Cumulative Update. For instructions, see Update Windows 10.

Note If reinstalling the language pack does not mitigate the issue, reset your PC as follows:

  1. Go to the Settings app > Recovery.
  2. Select Get Started under the Reset this PC recovery option.
  3. Select Keep my Files.

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

After installing KB4550969 or later, when using Microsoft Edge Legacy, you might receive the error,”0x80704006. Hmmmm…can’t reach this page” when attempting to reach websites on non-standard ports. Any website that uses a port listed in the Fetch Standard specification under bad ports or port blocking might cause this issue.

This issue is resolved in KB4577069.

How to get this update


Before installing this update

Microsoft strongly recommends you install the latest servicing stack update (SSU) for your operating system before installing the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing the LCU 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 (KB4566424) 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 sync with WSUS if you configure Products and Classifications as follows:

Product: Windows 10

Classification: Security Updates

 

File information

For a list of the files that are provided in this update, download the file information for cumulative update 4565349

Note Some files erroneously have “Not applicable” in the “File version” column of the CSV file. This might lead to false positives or false negatives when using some third-party scan detection tools to validate the build.