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
7.3 High
AI Score
Confidence
Low
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
0.961 High
EPSS
Percentile
99.5%
This security update includes improvements and fixes in the functionality of Windows 10 Version 1511. It also resolves the following vulnerabilities in Windows:
If you have installed previous updates, only the new fixes that are contained in this package will be downloaded and installed to your computer. If you are installing a Windows 10 update package for the first time, the package for the x86 version is 550 MB and the package for the x64 version is 1,030 MB.
Consider the following scenario:
* You try to access a file server by using the SMBv1 protocol through an application such as File Explorer.
* The application uses the CONNECT_INTERACTIVE flag for the WNetAddConnection API.
* You’re using a computer that’s logged in through Microsoft Account credentials.
* The network credentials you’re using to access the file server share are not present in Credential Manager.
* The firewall profile on the computer is set to Public.
In this scenario, you receive the following error message:
A specified logon session does not exist. It may already have been terminated.
This problem may occur if you have security update 3187754 installed.
Workaround
To work around this problem, use any of these options:
* Option 1: If possible, use SMBv2 instead of SMBv1.
* Option 2: Pass credentials explicitly through the following net use cmd:
net use \<serverName><shareName> /user: <DomainName\UserName> <Password>
* Option 3: Change the network profile to **Private** for private home networks instead of**Public**.
* Option 4: Save credentials for trusted network shares in Credential Manager.
Important If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.
This update will be downloaded and installed automatically.
To get the stand-alone package for this update, go to the Microsoft Update Catalog website.
There are no prerequisites for installing this update.
You must restart the computer after you apply this update.
This update replaces the previously released update 3176493.
For a list of the files that are provided in this cumulative update, download the file information for cumulative update 3185614.
Learn about the terminology that Microsoft uses to describe software updates.
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
7.3 High
AI Score
Confidence
Low
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
0.961 High
EPSS
Percentile
99.5%