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mskbMicrosoftKB4507461
HistoryAug 06, 2019 - 7:00 a.m.

July 9, 2019—KB4507461 (Security-only update)

2019-08-0607:00:00
Microsoft
support.microsoft.com
116

CVSS2

9.3

Attack Vector

NETWORK

Attack 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

CVSS3

8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.6

Confidence

High

EPSS

0.279

Percentile

96.9%

July 9, 2019—KB4507461 (Security-only update)

**July 19, 2019 - IMPORTANT:**Beginning with the July 2019 updates, Active Directory domain controllers will intentionally block unconstrained delegation across forest, external, and quarantined trusts. Authentication requests for services that use unconstrained delegation over the listed trust types will fail when you request new tickets. Administrators should reconfigure the affected services to use resource-based constrained delegation. For more information, see KB4490425.

Improvements and fixes

This security update includes quality improvements. Key changes include:

  • Provides protections against a variant (CVE-2019-1125) of the Spectre Variant 1 speculative execution side channel vulnerability.
  • Security updates to Windows Server, Microsoft Graphics Component, Windows Shell, Windows Input and Composition, and Windows Kernel.
    For more information about the resolved security vulnerabilities, please refer to the Security Update Guide.

Known issues in this update

Symptom Workaround
Devices that start up using Preboot Execution Environment (PXE) images from Windows Deployment Services (WDS) or System Center Configuration Manager (SCCM) may fail to start with the error “Status: 0xc0000001, Info: A required device isn’t connected or can’t be accessed” after installing this update on a WDS server. This issue is resolved in KB4512499.

How to get this update

Before installing this updateMicrosoft strongly recommends 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. If you are using Windows Update, the latest SSU (KB4493730) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog.Install this update****Release Channel Available Next Step
Windows Update and Microsoft Update No See the other options below.
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 synchronize with WSUS if you configure Products and Classifications as follows:Product: Windows Server 2008 Service Pack 2Classification: Security Updates File informationFor a list of the files that are provided in this update, download the file information for update 4507461.

CVSS2

9.3

Attack Vector

NETWORK

Attack 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

CVSS3

8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.6

Confidence

High

EPSS

0.279

Percentile

96.9%