Severity Rating: Important
Revision Note: V2.0 (April 11, 2017): Bulletin revised to announce that the security updates that apply to CVE-2017-0042 for Windows Server 2012 are now available. Customers running Windows Server 2012 should install update 4015548 (Security Only) or 4015551 (Monthly Rollup) to be fully protected from this vulnerability. Customers running other versions of Microsoft Windows do not need to take any further action.
Summary: This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow an Information Disclosure if Windows DirectShow opens specially crafted media content that is hosted on a malicious website. An attacker who successfully exploited the vulnerability could obtain information to further compromise a target system.