Buffer overflow in Cisco WebEx Advanced Recording Format (ARF) player T27 LD before SP32 EP16, T27 L10N before SP32ORION111, and T28 before T28.8 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted ARF file, aka Bug IDs CSCue74118, CSCub28371, CSCud23401, and CSCud31109.