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

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.

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 determine the current directory of the Internet Explorer process via the getAbsolutePath() method in a File() call.

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, 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 virtual machine (VM) build 5.0.3805 and earlier, as used in Internet Explorer, allows remote attackers to extend the Standard Security Manager (SSM) class (com.ms.security.StandardSecurityManager) and bypass intended StandardSecurityManager restrictions by modifying the (1) deniedDefinitionPackages or (2) deniedAccessPackages settings, causing a denial of service by adding Java applets to the list of applets that are prevented from running.

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, can provide HTML object references to applets via Javascript, which allows remote attackers to cause a denial of service (crash due to illegal memory accesses) and possibly conduct other unauthorized activities via an applet that uses those references to access proprietary Microsoft methods.

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."

Microsoft Java virtual machine (VM) 5.0.0.3810 allows remote attackers to bypass sandbox restrictions to read or write certain data between applets from different domains via the "GET/Key" and "PUT/Key/Value" commands, aka "cross-site Java."