In case you missed it yesterday, Real issued a couple of patches for its players. The most current version is now up to 6.0.12.1059. Get the updates here, or just download the full installer here. Alternatively, you can go to the tools menu, & select "Check for update."

"RealNetwork's patches, released Tuesday, address vulnerabilities in the software that could allow an attacker to run arbitrary or malicious code on a person's computer when a malicious WAV or SMIL file is processed."