Over the weekend we became aware of an active attack relying on an unknown remote code execution vulnerability of a legacy ActiveX component used by Internet Explorer. We are releasing this blog to confirm one more time that the code execution vulnerab…
Microsoft is recommending that customers and CA’s stop using SHA-1 for cryptographic applications, including use in SSL/TLS and code signing. Microsoft Security Advisory 2880823 has been released along with the policy announcement that Microsoft will s…
In June 2013, we released EMET 4.0 and customer response has been fantastic. Many customers across the world now include EMET as part of their defense-in-depth strategy and appreciate how EMET helps businesses prevent attackers from gaining access to c…
Today we released eight security bulletins addressing 19 CVE’s. Three bulletins have a maximum severity rating of Critical while the other five have a maximum severity rating of Important. We hope that the table below helps you prioritize the deploymen…
In light of recent research into practical attacks on biases in the RC4 stream cipher, Microsoft is recommending that customers enable TLS1.2 in their services and take steps to retire and deprecate RC4 as used in their TLS implementations. Microsoft r…
Object lifetime management vulnerabilities represent a very common class of memory safety vulnerability. These vulnerabilities come in many shapes and sizes, and are typically quite difficult to mitigate generically. Vulnerabilities of this type result…
Recently we become aware of a vulnerability of a Microsoft graphics component that is actively exploited in targeted attacks using crafted Word documents sent by email. Today we are releasing Security Advisory 2896666 which includes a proactive Fix it …
