Microsoft Security Bulletin(s) for October 2017
Note: There may be latency issues due to replication, if the page does not display keep refreshing
Today Microsoft released the following Security Bulletin(s).
Note: Microsoft Security Response Centre and Security TechCenter are authoritative in all matters concerning Microsoft Security Bulletins! ANY e-mail, web board or newsgroup posting (including this one) should be verified by visiting these sites for official information. Microsoft never sends security or other updates as attachments. These updates must be downloaded from the microsoft.com download center or Windows Update. See the individual bulletins for details.
Because some malicious messages attempt to masquerade as official Microsoft security notices, it is recommended that you physically type the URLs into your web browser and not click on the hyperlinks provided.
October 2017 Security Updates
Release Date: October 10, 2017
The October security release consists of security updates for the following software:
Microsoft Office and Microsoft Office Services and Web Apps
Skype for Business and Lync
Please note the following information regarding the security updates:
Windows 10 updates are cumulative. The monthly security release includes all security fixes for vulnerabilities that affect Windows 10, in addition to non-security updates. The updates are available via the Microsoft Update Catalog.
Starting in March 2017, there will be a Windows 10 1607 delta package that contains just the delta changes between the previous month and the current release.
Updates for Windows RT 8.1 and Microsoft Office RT software are only available via Windows Update.
In addition to security changes for the vulnerabilities, updates include defense-in-depth updates to help improve security-related features.
After May 9, 2017, customers running Windows 10 version 1507 will no longer receive security and quality updates, with the excecption of the Windows 10 2015 LTSB and the Windows 10 IoT Enterprise 2015 LTSB editions. Microsoft recommends that customers running other editions of Windows 10 version 1507 that are no longer supported should update your devices to the latest version of Windows 10. For more information see Microsoft Knowledge Base Article 4015562.
Please note that Microsoft may release bulletins outside of this schedule if we determine the need to do so.
If you have any questions regarding the patch or its implementation after reading the above listed bulletin you should contact For home users, no-charge support for security updates (only!) is available by calling 800-MICROSOFT (800-642-7676) in the US or 877-568-2495 in Canada.