MS Windows Help and Support Center Remote Code Execution Vulnerability

This host is prone to remote code execution vulnerability.
Successful exploitation will allow remote attackers to execute arbitrary code or compromise a vulnerable system. Impact Level: System
Vendor has released a patch for the issue, refer below link for patch.
The flaws are due to: - An error in the 'MPC::HTML::UrlUnescapeW()' function within the Help and Support Center application (helpctr.exe) that does not properly check the return code of 'MPC::HexToNum()' when escaping URLs, which could allow attackers to bypass whitelist restrictions and invoke arbitrary help files. - An input validation error in the 'GetServerName()' function in the 'C:\WINDOWS\PCHealth\HelpCtr\System\sysinfo\commonFunc.js' script invoked via 'ShowServerName()' in 'C:\WINDOWS\PCHealth\HelpCtr\System\sysinfo\sysinfomain.htm', which could be exploited by attackers to execute arbitrary scripting code.
Windows XP Service Pack 2/3 Windows Server 2003 Service Pack 2.