Description of the Windows Server 2008 Windows wireless WPA group key reinstallation vulnerability: October 16, 2017

Applies to: Windows Server 2008 Service Pack 2Windows Server 2008 FoundationWindows Server 2008 Standard


A spoofing vulnerability exists in the Windows implementation of wireless networking. An attacker who successfully exploits this vulnerability could potentially replay broadcast or multicast traffic to hosts on a WPA-protected or WPA 2-protected wireless network.

To learn more about the vulnerability, go to CVE-2017-13080.

More Information

  • 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 security update will not be installed unless you are running the WLAN AutoConfig service. 

Improvements and fixes

This security update contains the following improvements and fixes:

  • Addressed an issue in which creating a wireless policy by using the Group Policy Management Console (GPMC) causes a name conflict in Active Directory Domain Service (AD DS).
  • Addressed an issue in which a filter restart fails because of a race condition that occurs when querying the list of supported GUIDs.

How to obtain and install the update

Method 1: Windows Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, see Windows Update: FAQ.

Method 2: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

Deployment information

For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:

File Information

File information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time together with your current daylight-saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.

Windows Server 2008 file information