Real player is probably installed on many of your computers, and an exploit for an unpatched vulnerability was made public on the full-disclosure mailing list.

As a result, those using ActiveX capable browsers (read: MSIE) are vulnerable to attack, with no patch on the horizon yet.

Workarounds:

• Set killbits for:
  rmoc3260.dll version 6.0.10.45
  {2F542A2E-EDC9-4BF7-8CB1-87C9919F7F93}
  {CFCDAA03-8BE4-11CF-B84B-0020AFBBCCFA}
  But this will also remove the genuine functionality of the player.
• Use a browser that doesn't support ActiveX (there's plenty of those).

--
Swa Frantzen -- Gorilla Security