This indicates an attack attempt to exploit a remote Code Execution vulnerability in VLC Media Player.
The vulnerability is due to an error when the vulnerable software handles a maliciously crafted SWF file. A remote attacker may be able to exploit this to execute arbitrary code within the context of the application, via a crafted SWF file.
Videolan.org VLC Media Player 2.0.4 and earlier versions
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply patch from vendor, available from website: