JScript Runtime - Global Scope

test.wsf

<?xml version="1.0" encoding="utf-8"?>
<package>
<job id="Test">
    <script language="JScript"><![CDATA[
!function(global) {
	
	global.testMe = function() {
		// this never executes
		WScript.StdOut.WriteLine("Got here.");
		return "test";
	};

}(this);

function main() {
	// outputs 'function'
	WScript.StdOut.WriteLine(typeof testMe);
	
	// does nothing
	var x = testMe();
	WScript.StdOut.WriteLine(x);
}

main();
testMe();

	]]></script>
</job>
</package>

Faulting application name: cscript.exe, version: 5.812.10240.16384, time stamp: 0xafcfb588
Faulting module name: scrobj.dll, version: 5.812.10240.16384, time stamp: 0x729e69b6
Exception code: 0xc0000005
Fault offset: 0x000000000001a3f0
Faulting process id: 0x34A0
Faulting application start time: 0x1DC13BAC4F392A9
Faulting application path: C:\WINDOWS\system32\cscript.exe
Faulting module path: C:\Windows\System32\scrobj.dll
Report Id: 4b25611c-47f2-4294-8f53-bef49f12cd90
Faulting package full name: 
Faulting package-relative application ID: 

Even if it doesn't say so... it's crashing.

0xc0000005 is a memory access violation. Is it exploitable?