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July 13, 2021—KB5004294 (Monthly Rollup)

Description

None **Important: **This release includes the Flash Removal Package. Taking this update will remove Adobe Flash from the device. For more information, see the [Update on Adobe Flash Player End of Support](<https://blogs.windows.com/msedgedev/2020/09/04/update-adobe-flash-end-support/>). **Important: **Windows Server 2012 has reached the end of mainstream support and is now in extended support. Starting in July 2020, there will no longer be optional releases (known as "C" or "D" releases) for this operating system. Operating systems in extended support have only cumulative monthly security updates (known as the "B" or Update Tuesday release). Verify that** **you have installed the required updates listed in the **How to get this update** section before installing this update. For information about the various types of Windows updates, such as critical, security, driver, service packs, and so on, please see the following [article](<https://support.microsoft.com/help/824684>). To view other notes and messages, see the Windows Server 2012 update history [home page](<https://support.microsoft.com/help/4009471>). ## **Improvements and fixes** This security update includes improvements and fixes that were a part of update [KB5004956](<https://support.microsoft.com/help/5004956>) (released July 6, 2021) and addresses the following issues: * Addresses an issue in which 16-bit applications fail with an error message that states a general fault in VBRUN300.DLL. * Addresses an issue in which some EMFs built by using third-party applications that use **ExtCreatePen** and **ExtCreateFontIndirect** render incorrectly. * Adds Advanced Encryption Standard (AES) encryption protections for [CVE-2021-33757](<https://portal.msrc.microsoft.com/security-guidance/advisory/CVE-2021-33757>). For more information, see [KB5004605](<https://support.microsoft.com/help/5004605>). * Removes support for the **PerformTicketSignature** setting and permanently enables **Enforcement mode**. [For more information and additional steps to enable protection on domain controller servers, see Managing deployment of Kerberos S4U changes for CVE-2020-17049.](<https://support.microsoft.com/help/4598347>) * Security updates to Windows Apps, Windows Fundamentals, Windows Authentication, Windows Operating System Security, Windows Graphics, Microsoft Scripting Engine, Windows HTML Platforms, and Windows MSHTML Platform. For more information about the resolved security vulnerabilities, please refer to the new [Security Update Guide](<https://msrc.microsoft.com/update-guide>) website. ## **Known issues in this update** **Symptom**| **Workaround** ---|--- After installing updates released July 13, 2021 on domain controllers (DCs) in your environment, printers, scanners, and multifunction devices which are not compliant with section 3.2.1 of [RFC 4556 spec](<https://www.ietf.org/rfc/rfc4556.txt>), might fail to print when using smart-card (PIV) authentication.| For more information on this issue, please see [KB5005408 - Smart-card authentication might cause print and scan failures](<https://support.microsoft.com/help/5005408>). 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. ## **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](<https://docs.microsoft.com/en-us/windows/deployment/update/servicing-stack-updates>) and [Servicing Stack Updates (SSU): Frequently Asked Questions](<https://support.microsoft.com/help/4535697>).If you use Windows Update, the latest SSU ([KB5001401](<https://support.microsoft.com/help/5001401>)) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the [Microsoft Update Catalog](<http://www.catalog.update.microsoft.com/home.aspx>). **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](<https://www.catalog.update.microsoft.com/Search.aspx?q=KB5004294>) 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 Updates ## **File information** For a list of the files that are provided in this update, download the [file information for update 5004294](<https://download.microsoft.com/download/d/d/8/dd8d3ce0-52b3-4c5c-a23c-4db4f85de1a8/5004294.csv>).


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