Microsoft Security Response Center

The Microsoft Security Response Center (MSRC) identifies, monitors, responds to and resolves security incidents and vulnerabilities in Microsoft software.

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  • Blog Post: Security Advisory 3046015 released

    Today, we released Security Advisory 3046015 to provide guidance to customers in response to the SSL/TLS issue referred to by researchers as “FREAK” (Factoring attack on RSA-EXPORT Keys). Our investigation continues and we’ll take the necessary steps to protect our customers. ...
  • Blog Post: Security Bulletin MS14-068 released

    Today, we released an out-of-band security update to address a vulnerability in Kerberos which could allow Elevation of Privilege. This update is for all supported versions of Windows Server and includes a defense-in-depth update for all supported versions of Windows. We strongly encourage customers...
  • Blog Post: Out-of-band release for Security Bulletin MS14-068

    On Tuesday, November 18, 2014, at approximately 10 a.m. PST, we will release an out-of-band security update to address a vulnerability in Windows. We strongly encourage customers to apply this update as soon as possible, following the directions in the security bulletin. More information about...
  • Blog Post: November 2014 Updates

    Today, as part of Update Tuesday, we released 14 security updates – four rated Critical, nine rated Important, and two rated Moderate, to address 33 Common Vulnerabilities and Exposures (CVEs) in Microsoft Windows, Internet Explorer (IE), Office, .NET Framework, Internet Information Services (IIS...
  • Blog Post: Security Advisory 3010060 released

    Today, we released Security Advisory 3010060 to provide additional protections regarding limited, targeted attacks directed at Microsoft Windows customers. A cyberattacker could cause remote code execution if someone is tricked into opening a maliciously-crafted PowerPoint document that contains an infected...
  • Blog Post: Advance Notification Service for September 2013 Security Bulletin Release

    In celebration of kids heading back to school, today we’re providing advance notification for the release of 14 bulletins, four Critical and 10 Important, for September 2013. The Critical updates address issues in Internet Explorer, Outlook, SharePoint and Windows. As always, we’ve scheduled...
  • Blog Post: Clarification on Security Advisory 2896666 and the ANS for the November 2013 Security Bulletin Release

    Today, we’re providing advance notification for the release of eight bulletins, three Critical and five Important, for November 2013. The Critical updates address vulnerabilities in Internet Explorer and Microsoft Windows, and the Important updates address issues in Windows and Office. While...