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MicrosoftKB5031989

HistoryNov 14, 2023 - 8:00 a.m.

November 14, 2023-KB5031989 Cumulative Update for .NET Framework 4.8 for Windows 10, version 1607 and Windows Server 2016

2023-11-1408:00:00

Microsoft

support.microsoft.com

250

update

.net framework 4.8

security

quality

windows 10

windows server 2016

cve-2023-36560

cve-2023-36049

prerequisites

restart.

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.3 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.001 Low

EPSS

Percentile

47.7%

JSON

November 14, 2023-KB5031989 Cumulative Update for .NET Framework 4.8 for Windows 10, version 1607 and Windows Server 2016

Revised 11/15/23: to remove CVE details which were not affected by the .NET Framework November Security and Quality rollup.

Release Date:
November 14, 2023Version: .NET Framework 4.8

The November 14, 2023 update for Windows 10, version 1607 and Windows Server 2016 includes security and cumulative reliability improvements in .NET Framework 4.8. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the Prerequisites and Restart requirement sections.

Summary

Security ImprovementsCVE-2023-36560 – .NET Framework Security Feature Bypass Vulnerability
This security update addresses a security feature bypass vulnerability detailed in CVE-2023-36560.CVE-2023-36049 – .NET Framework Elevation of Privilege Vulnerability
This security update addresses a elevation of privilege vulnerability detailed in CVE-2023-36049.Quality and Reliability ImprovementsThere are no new Quality and Reliability Improvements in this update.

Known issues in this update

Microsoft is not currently aware of any issues in this update.

How to get this update

Install this updateRelease Channel	Available	Next Step
Windows Update and Microsoft Update	Yes	None. This update will be downloaded and installed automatically from Windows Update.
Windows Update for Business	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 as follows:Product: Windows 10, version 1607 and Windows Server 2016Classification: Security Updates File informationFor a list of the files that are provided in this update, download the file information for cumulative update.

Prerequisites

To apply this update, you must have .NET Framework 4.8 installed.

Restart requirement

You must restart the computer after you apply this update if any affected files are being used. We recommend that you exit all .NET Framework-based applications before you apply this update.