KB4519998 updates Windows 10 1607 to Build 14393.3274 – 8 Oct 2019

Microsoft reveals a new cumulative update KB4519998 for Windows 10 1607 users on 8th October 2019. This is basically a security patch that takes the existing OS to build 14393.3274 along with updating IE, Edge and Windows Components. Moreover, KB4519998 addresses a printing issue that some users have recently encountered in the previous build. 

Users may grab this patch update through Windows Update or Windows Server Update Services (WSUS) automatically. The company resolves a long-time occurring error which hampers the connection latency as well as minimizes CPU utilization. Besides, like all other patch updates, this update replaces any preceding update.

KB4519998

KB4519998 – Fixes and Improvements

Here, we depict the key features that came along with the KB4519998 security update-

  • With this cumulative update, Microsoft increases the overall CPU utilization as well as connection latency. Earlier, there was a bug in security bulletin CVE-2019-1318 that prohibits client or server computers from supporting Extended Master Secret (EMS) RFC 7627. This anomaly becomes active primarily when one performs a full Transport Layer Security (TLS) handshake from devices that don’t support EMS, especially on servers. Since 2015, the company has enabled EMS support through all the supported Windows 10 versions. The team may extend this forcefully after installing Oct 8, 19H2 or further patch updates.
  • Resolves the applications and printer drivers issue that makes use of the Windows JavaScript engine (jscript.dll) to perform print jobs.
  • Rolls security updates for the following-
    • Windows Server
    • Microsoft Scripting Engine
    • Internet Information Services
    • Windows Kernel
    • Microsoft JET Database Engine
    • Windows Authentication
    • Windows Cryptography
    • Microsoft Edge
    • Internet Explorer
    • Windows Storage and Filesystems

KB4519998 – Known Issues

There may appear following issues after installing this cumulative update on your device-

Symptom Workaround

KB4467684, after installation, may erupt some issues inside cluster services on the following error message-

“2245 (NERR_PasswordTooShort)”

This bug appears only when the group policy is configured to use 14 or more characters under “Minimum Password Length”. 

To counter this bug, you should use less or equal to 14 characters inside the above policy. 

A few operations are subject to fail while renaming files and folders that are on a cluster shared volume.

When you encounter this trouble, you may receive the following error message as well-

“STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)”.

This trouble arises when either you don’t have the full rights to carry such operations. Hence, to resolve this issue, you should perform any of these-

  • Prior to executing such operations, login as an Admin.
  • Perform the operation using a node that doesn’t require CSV ownership.

How to get this Update

We suggest you download the KB4521858 servicing stack update before proceeding to install KB4519998. This ensures no bug appears during the whole update process. You may get this patch update through following ways-

1. Windows Update

Navigate to Settings > Update & Security > Windows Update and tap “Check for Updates” button.

2. Microsoft Update Catalog

Click here to download the standalone package.

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