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Microsoft Security Bulletin

Upcoming Release

  • Microsoft security bulletins are released on the second Tuesday of each month.

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To get help protecting your home computer, please visit the Security Center for Home Users, or download the updates from Microsoft Update.

Download Detailed Bulletin Information

Download an Excel file containing detailed information, such as affected components, bulletin replacements, reboot requirements, and related Common Vulnerabilities and Exposures (CVEs). Additionally, bulletin information in the Common Vulnerability Reporting Framework (CVRF) format is available.Download Microsoft Security Bulletin Data


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Security Advisories  Security advisories
View security changes that don't require a bulletin but may still affect customers.

Security Response Microsoft Security Response Center (MSRC) blog
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