Sun Java JRE 1.1.x through 1.4.x writes temporary files with long filenames that become predictable on a file system that uses 8.3 style short names, which allows remote attackers to write arbitrary files to known locations and facilitates the exploitation of vulnerabilities in applications that rely on unpredictable file names.

Java Runtime Environment (JRE) Bytecode Verifier allows remote attackers to escape the Java sandbox and execute commands via an applet containing an illegal cast operation, as seen in (1) Microsoft VM build 3802 and earlier as used in Internet Explorer 4.x and 5.x, (2) Netscape 6.2.1 and earlier, and possibly other implementations that use vulnerable versions of SDK or JDK, aka a variant of the "Virtual Machine Verifier" vulnerability.

Vulnerability in Java Runtime Environment (JRE) allows remote malicious web sites to hijack or sniff a web client's sessions, when an HTTP proxy is being used, via a Java applet that redirects the session to another server, as seen in (1) Netscape 6.0 through 6.1 and 4.79 and earlier, (2) Microsoft VM build 3802 and earlier as used in Internet Explorer 4.x and 5.x, and possibly other implementations that use vulnerable versions of SDK or JDK.

Java Runtime Environment (JRE) and SDK 1.2 through 1.3.0_04 allows untrusted applets to access the system clipboard.