Improper Input Validation
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.
CWE-20 - Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.