8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
7 High
AI Score
Confidence
High
6.5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
0.561 Medium
EPSS
Percentile
97.6%
This security update resolves a Microsoft SharePoint Server spoofing vulnerability, SharePoint Server information disclosure vulnerability, and SharePoint Server remote code execution vulnerability. To learn more about the vulnerabilities, see the following security advisories:
**Note:**To apply this security update, you must have the release version of Microsoft SharePoint Enterprise Server 2016 installed on the computer.
This public update delivers Feature Pack 2 for SharePoint Server 2016. Feature Pack 2 contains the following feature:
This security update contains fixes for the following nonsecurity issues in SharePoint Server 2016:
Fixes an issue in which PSConfig doesn’t start an administrative instance of Microsoft Edge when you try to use SharePoint Server Central Administration.
Fixes an issue in which you can’t resolve Portal Super User and Portal Super Reader accounts in a multi-tenant farm.
Fixes an issue in which you can’t open the XSL and Parameters editor in Microsoft Edge that’s based on Chromium.
Fixes an issue in which SharePoint Designer doesn’t create a forms page under a subsite.
Fixes an issue in which the Site Aggregator Web Part doesn’t add a new tab as expected.
This security update also contains fixes for the following nonsecurity issues in SharePoint Server 2016. To fix the issues completely, you have to install KB 5001981 together with this update.
Adds the ability to change the ASP.NET view state decryption and validation keys of a SharePoint Server web application. The Set-SPMachineKey PowerShell cmdlet configures and deploys new decryption and validation keys to the servers in the farm. TheUpdate-SPMachineKey PowerShell cmdlet deploys decryption and validation keys to the servers in the farm.
Fixes an issue that affects the bypass list functionality in the search crawler proxy settings by adding Windows-style wildcard support to the bypass list.
This security update also contains fixes for the following nonsecurity issues in Project Server 2016:
Fixes an issue in which submitted status updates don’t appear for approval after you submit a timesheet.
In the Scheduled Web Part, the Pastebutton doesn’t paste the cut or copied task to the grid. Paste by using the keyboard (Ctrl+V) does work as expected. However, cut by using the keyboard (Ctrl+X) doesn’t work. Ctrl+X copies the task instead of cutting it.
Existing workflows might stop functioning in Microsoft SharePoint 2010 workflows after you install this security update for SharePoint Server. Additionally, “c42q8,” “c42ra,” or “c42rh” event tags are logged in the SharePoint Unified Logging System (ULS) log. For more information, see KB 5004862.
This update is available from Microsoft Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see Windows Update: FAQ.
To get the standalone package for this update, go to the Microsoft Update Catalog website.
You can get the standalone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.
For deployment information about this update, see Security update deployment information: July 13, 2021 (KB5004480).
This security update replaces previously released security update 5001946.
File name | SHA256 hash |
---|---|
sts2016-kb5001976-fullfile-x64-glb.exe | BCC5CEE0BE4C296198C654EC2B8FAB836B73848DB11136074BD315250CB33816 |
Download the list of files that are included in security update 5001976.
Protect yourself online: Windows Security supportLearn how we guard against cyber threats: Microsoft Security
The following table summarizes some of the most important changes to this topic.Date | Description |
---|---|
July 22, 2021 | Update the issue description about the bypass list functionality in the Improvements and fixes section. |
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
7 High
AI Score
Confidence
High
6.5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
0.561 Medium
EPSS
Percentile
97.6%