CVSS2
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
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
98.5%
This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:
Symptom | Workaround |
---|---|
After installing this update, the first character of the Japanese era name is not recognized as an abbreviation and may cause date parsing issues. | This issue is resolved in KB4487021. |
After installing this update, Internet Explorer may fail to load images with a backslash (\) in their relative source path. | This issue is resolved in KB4487021. |
Applications that use a Microsoft Jet database with the Microsoft Access 95 file format may randomly stop working. | This issue is resolved in KB4487021. |
After installing this update, users may receive “Error 1309” while installing or uninstalling certain types of MSI and MSP files. | This issue is resolved in KB4489886. |
After installing this update, MSXML6 causes applications to stop responding if an exception was thrown during node operations, such as appendChild(),insertBefore(), andmoveNode().The Group Policy editor may stop responding when editing a Group Policy Object (GPO) that contains Group Policy Preferences (GPP) for Internet Explorer 10 settings. | This issue is resolved in KB4493441. |
Any compound document (OLE) server application that places embedded objects into the Windows Metafile (WMF) using the PatBltAPI may display embedded objects incorrectly.For example, if you paste a Microsoft Excel worksheet object into a Microsoft Word document, the cells may render with a different background color. | This issue is resolved in KB4493441. |
Certain operations, such as rename, that you perform on files or folders that are on a Cluster Shared Volume (CSV) may fail with the error, “STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)”. This occurs when you perform the operation on a CSV owner node from a process that doesn’t have administrator privilege. | Do one of the following: |
Before installing this updateMicrosoft strongly recommends you install the latest servicing stack update (SSU) for your operating system before installing the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing the LCU and applying Microsoft security fixes. For more information, see Servicing stack updates.If you are using Windows Update, the latest SSU (KB4485448) will be offered to you automatically. To get the stand-alone package for the latest SSU, go to the Microsoft Update Catalog.Install this updateThis update will be downloaded and installed automatically from Windows Update. To get the stand-alone package for this update, go to the Microsoft Update Catalog website.File informationFor a list of the files that are provided in this update, download the file information for cumulative update 4486996.
CVSS2
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
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
98.5%