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This security update includes improvements and fixes that were a part of update KB4054520 (released December 12, 2017) and addresses the following issues:
For more information about the resolved security vulnerabilities, see the Security Update Guide.
| Symptom | Workaround |
|
When calling CoInitializeSecurity, the call will fail if passing RPC_C_IMP_LEVEL_NONE under certain conditions. When calling CoInitializeSecurity, the call may fail when passing RPC_C_AUTHN_LEVEL_NONE as the authentication level. The error returned on failure is STATUS_BAD_IMPERSONATION_LEVEL. |
This issue is resolved in KB4057402. |
This update will be downloaded and installed automatically from Windows Update. To get the standalone package for this update, go to the Microsoft Update Catalog website.
File information
For a list of the files that are provided in this update, download the file information for update 4056896.
Keywords: Windows Server 2012, windows embedded 8 standard