Format string vulnerability in the httpdFileCallBack function (network/httpd.c) in VideoLAN VLC 0.8.6d allows remote attackers to execute arbitrary code via format string specifiers in the Connection parameter.

Stack-based buffer overflow in modules/demux/subtitle.c in VideoLAN VLC 0.8.6d allows remote attackers to execute arbitrary code via a long subtitle in a (1) MicroDvd, (2) SSA, and (3) Vplayer file.

The RTSP module in VideoLAN VLC 0.8.6d allows remote attackers to cause a denial of service (crash) via a request without a Transport parameter, which triggers a NULL pointer dereference.

The browser plugin in VideoLAN VLC 0.8.6d allows remote attackers to overwrite arbitrary files via (1) the :demuxdump-file option in a filename in a playlist, or (2) a EXTVLCOPT statement in an MP3 file, possibly an argument injection vulnerability.