Untrusted search path vulnerability in RealPlayer SP 1.1.5 12.0.0.879 allows local users to gain privileges via a Trojan horse rio500.dll file in the current working directory, as demonstrated by a directory that contains a .avi file. NOTE: some of these details are obtained from third party information.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2010-5187
http://www.cs.ucdavis.edu/research/tech-reports/2010/CSE-2010-2.pdf