This indicates a possible attack against a denial of service vulnerability in Cisco WebEx WRF Player, which could be exploited by opening a local/online malicious WRF file.
Cisco WebEx WRF Player 3.0 or earlier versions on Linux, Microsoft Windows and Mac OS X
Denial of Service.
Use the solution provided by Cisco:
FG-VD-09-008: fixed in WebEx releases T26 and T27
FG-VD-09-010: fixed in WebEx releases T26SP49EP32 and T27SP10
FG-VD-09-012: fixed in WebEx releases T26SP49EP32 and T27SP10
FG-VD-09-013: fixed in WebEx releases T26SP49EP32 and T27SP10
FG-VD-09-014: fixed in WebEx releases T26LSp49EP32 and T27SP10
FG-VD-09-016: fixed in WebEx release T26SP49EP