Microsoft Windows Media Runtime, as used in DirectShow WMA Voice Codec, Windows Media Audio Voice Decoder, and Audio Compression Manager (ACM), does not properly initialize unspecified functions within compressed audio files, which allows remote attackers to execute arbitrary code via (1) a crafted media file or (2) crafted streaming content, aka "Windows Media Runtime Heap Corruption Vulnerability."

Microsoft Windows Media Player (WMP) 9.0 through 11 allows user-assisted attackers to cause a denial of service (application crash) via a malformed (1) MIDI or (2) DAT file, related to "MThd Header Parsing." NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.