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Direct Download KB5001330 Offline Installer, Security Update

KB5001330 is out for both Windows 10 v20H2 and v2004. Here are the direct download links for KB5001330 offline installer.

As always, the patch Tuesday has arrived and Microsoft released a new Windows 10 update for both v20H2 and v2004 users. However, unlike the regular cumulative updates, KB5001330 is a security update with some important security fixes for known vulnerabilities. Being a security update, it doesn’t contain any other improvements or feature updates. Moreover, KB5001330 is not an optional update too. This means that it will be auto-installed on all supported machines.

This specific update fixes three major security risks. They are the privilege escalation vulnerability, active directory vulnerability, and vulnerability in the RemoteFX vGPU feature. Apart from that, KB5001330 also contains other security improvements for different parts of Windows 10. These include but are not limited to the kernel, Windows AI platform, fundamentals, virtualization, Windows media, Windows input, Windows composition, etc.

Since this is a security update, I recommend you install it as soon as possible to avoid any security issues. Do keep in mind that while installing the KB5001330 update, it might automatically install any other necessary cumulative updates.

You can install the KB5001330 update directly from the Settings app. To install the update on an offline machine or if the Windows update is causing problems, use the links given below to download KB5001330 offline installer. Once downloaded, double-click on the installer and follow the on-screen wizard to install the KB5001330 update.

Download KB5001330 offline installer

Use the links below to download KB5001330 offline installer from the Microsoft catalog website.

For v20H2:

KB5001330 x86 (32-bit) offline installer (download size: 252.5 MB)

KB5001330 x64 (64-bit) offline installer (download size: 555.4 MB)

For v2004:

KB5001330 x86 (32-bit) offline installer (download size: 252.5 MB)

KB5001330 x64 (64-bit) offline installer (download size: 555.4 MB)

If you want KB5001330 download links for Windows Server, ARM64 based systems, or some other version then go to the Microsoft update catalog website to find the appropriate links. All you have to do is click on the Download button next to the appropriate version.

KB5001330 changelog

  • Addresses an issue in which a principal in a trusted MIT realm fails to obtain a Kerberos service ticket from Active Directory domain controllers (DC). This occurs on devices that installed Windows Updates that contain CVE-2020-17049 protections and configured PerfromTicketSignature to 1 or higher. These updates were released between November 10, 2020 and December 8, 2020. Ticket acquisition also fails with the error, “KRB_GENERIC_ERROR”, if callers submit a PAC-less Ticket Granting Ticket (TGT) as an evidence ticket without providing the USER_NO_AUTH_DATA_REQUIRED flag.

  • Addresses an issue with security vulnerabilities identified by a security researcher. Because of these security vulnerabilities, this and all future Windows updates will no longer contain the RemoteFX vGPU feature. For more information about the vulnerability and its removal, see CVE-2020-1036 and KB4570006. Secure vGPU alternatives are available using Discrete Device Assignment (DDA) in Windows Server LTSC releases (Windows Server 2016 and Windows Server 2019) and Windows Server SAC releases (Windows Server, version 1803 and later versions).

  • Addresses a potential elevation of privilege vulnerability in the way Azure Active Directory web sign-in allows arbitrary browsing from the third-party endpoints used for federated authentication. For more information, see CVE-2021-27092 and Policy CSP – Authentication.

  • Security updates to Windows App Platform and Frameworks, Windows Apps, Windows Input and Composition, Windows Office Media, Windows Fundamentals, Windows Cryptography, the Windows AI Platform, Windows Kernel, Windows Virtualization, and Windows Media.

That is it.

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