September 11, 2018—KB4457140 (Security-only update)

2018-09-1107:00:00

Microsoft

support.microsoft.com

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

6.8 Medium

AI Score

Confidence

High

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.971 High

EPSS

Percentile

99.8%

JSON

September 11, 2018—KB4457140 (Security-only update)

Improvements and fixes

This security update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:

Security updates to Windows media, Windows Shell, .NET Framework, Windows Hyper-V, Windows datacenter networking, Windows virtualization and kernel, Windows Kernel, Microsoft JET Database Engine, Windows MSXML, and Windows Server.
For more information about the resolved security vulnerabilities, see the Security Update Guide.

Known issues in this update

Symptom	Workaround
All Guest Virtual Machines running Unicast NLB fail to respond to NLB requests after the Virtual Machines restart.	This issue is resolved in KB4462931.
After installing this update, the Event Viewer may not show some event descriptions for network interface cards (NIC).	This issue is resolved in KB4489891.

How to get this update

This update is now available for installation through WSUS. To get the standalone package for this update, go to the Microsoft Update Catalog website.File informationFor a list of files provided in this update, download the file information for update 4457140.