SHA-1 Collisions Research

Today, a group of eight researchers from across the security industry released a research report on SHA-1 that demonstrates for the first time, a “hash collision” for the full SHA-1 hash algorithm (called “SHAttered”). This is a significant step toward understanding this type of security issue, a milestone in cryptanalysis that has been underway for…

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Microsoft releases Security Advisory 2963983

Today, we released Security Advisory 2963983 regarding an issue that impacts Internet Explorer. At this time, we are only aware of limited, targeted attacks. This issue allows remote code execution if users visit a malicious website with an affected browser. This would typically occur by an attacker convincing someone to click a link in an…


Microsoft Releases Security Advisory 2914486

Today we released Security Advisory 2914486 regarding a local elevation of privilege (EoP) issue that affects customers using Microsoft Windows XP and Server 2003. Windows Vista and later are not affected by this local EoP issue. A member of the Microsoft Active Protections Program (MAPP) found this issue being used on systems compromised by a third-party…

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ActiveX Control issue being addressed in Update Tuesday

Late last Friday, November 8, 2013, a vulnerability, CVE-2013-3918, affecting an Internet Explorer ActiveX Control was publically disclosed. We have confirmed that this vulnerability is an issue already scheduled to be addressed in “Bulletin 3”, which will be released as MS13-090, as listed in the November Advanced Notification Service (ANS). The security update will be…

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The October 2013 security updates

This month we release eight bulletins – four Critical and four Important – which address 25* unique CVEs in Microsoft Windows, Internet Explorer, SharePoint, .NET Framework, Office, and Silverlight. For those who need to prioritize their deployment planning, we recommend focusing on MS13-080, MS13-081, and MS13-083. Our Bulletin Deployment Priority graph provides an overview of…


Advance Notification Service for October 2013 Security Bulletin Release

Today we’re providing advance notification for the release of eight bulletins, four Critical and four Important, for October 2013. The Critical updates address vulnerabilities in Internet Explorer, .NET Framework and Windows. The Critical update for Internet Explorer will be a cumulative update which will address the publicly disclosed issue described in Security Advisory 2887505.   As…


July 2013 Security Bulletin Webcast, Q&A, and Slide Deck

Today we’re publishing the July 2013 Security Bulletin Webcast Questions & Answers page. During the webcast, we fielded 10 questions covering all updates. All questions are included on the Q&A page.  We invite our customers to join us for the next scheduled webcast on Wednesday, August 14th at 11 a.m. PT (UTC -8), when we…

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June 2013 Security Bulletin Webcast, Q&A, and Slide Deck

Today we’re publishing the June 2013 Security Bulletin Webcast Questions & Answers page.  We fielded three questions during the webcast, with specific questions focusing primarily on Windows Print Spooler (MS13-050), Microsoft Office (MS13-051), and the security advisory addressing digital certificates (SA2854544). There was one question we were unable to field on the air which we answered…

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Fix it for Security Advisory 2847140 is available

We have updated Security Advisory 2847140 to include an easy, one-click Fix it to address the known attack vectors. The Fix it is available to all customers and helps prevent known attacks that leverage the vulnerability to execute code and should not affect your ability to browse the Web. Additionally, applying the Fix it does…

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Microsoft Releases Security Advisory 2847140

Today, we released Security Advisory 2847140 regarding an issue that impacts Internet Explorer 8. Internet Explorer 6, 7, 9 and 10 are not affected by the vulnerability. This issue allows remote code execution if users browse to a malicious website with an affected browser. This would typically occur by an attacker convincing someone to click…

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