The LiveConnect implementation in plugin/icedteanp/IcedTeaNPPlugin.cc in IcedTea-Web before 1.4.2 allows local users to read the messages between a Java applet and a web browser by pre-creating a temporary socket file with a predictable name in /tmp.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 18.9%