The Microsoft Java implementation, as used in Internet Explorer, allows remote attackers to steal cookies and execute script in a different security context via a URL that contains a colon in the domain portion, which is not properly parsed and loads an applet from a malicious site within the security context of the site that is being visited by the user.

The Microsoft Java implementation, as used in Internet Explorer, allows remote attackers to cause a denial of service (crash) and possibly conduct other unauthorized activities via applet tags in HTML that bypass Java class restrictions (such as private constructors) by providing the class name in the code parameter, aka "Incomplete Java Object Instantiation Vulnerability."

Stack-based buffer overflow in the Microsoft Java implementation, as used in Internet Explorer, allows remote attackers to cause a denial of service via a long class name through (1) Class.forName or (2) ClassLoader.loadClass.

The Microsoft Java implementation, as used in Internet Explorer, allows remote attackers to read and modify the contents of the Clipboard via an applet that accesses the (1) ClipBoardGetText and (2) ClipBoardSetText methods of the INativeServices class.

The Microsoft Java implementation, as used in Internet Explorer, allows remote attackers to read arbitrary local files and network shares via an applet tag with a codebase set to a "file://%00" (null character) URL.

The Microsoft Java implementation, as used in Internet Explorer, allows remote attackers to read restricted process memory, cause a denial of service (crash), and possibly execute arbitrary code via the getNativeServices function, which creates an instance of the com.ms.awt.peer.INativeServices (INativeServices) class, whose methods do not verify the memory addresses that are passed as parameters.

The Microsoft Java implementation, as used in Internet Explorer, provides a public load0() method for the CabCracker class (com.ms.vm.loader.CabCracker), which allows remote attackers to bypass the security checks that are performed by the load() method.

The Microsoft Java implementation, as used in Internet Explorer, allows remote attackers to determine the current directory of the Internet Explorer process via the getAbsolutePath() method in a File() call.

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.

The Microsoft Java Virtual Machine allows a malicious Java applet to execute arbitrary commands outside of the sandbox environment.