1. Symantec/
  2. Security Response/
  3. Attack Signatures/
  4. HTTP WMF ASF Speech Codec BO

HTTP WMF ASF Speech Codec BO

Severity: High

This attack could pose a serious security threat. You should take immediate action to stop any damage or prevent further damage from happening.


This signature detects an attempt to exploit a vulnerability in Windows Media Format Runtime which could allow remote code execution.

Additional Information

Windows Media Format Runtime is a library for Microsoft Windows operating systems. It handles audio and video files for applications such as Microsoft Media Player.

A remote code-execution vulnerability when Windows Media Player fails to process a malformed ASF file properly.


  • DirectShow WMA Voice Codec
  • Windows Media Audio Voice Decoder
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