Permissions, Privileges, and Access Controls
The Protected Mode feature in Microsoft Internet Explorer 7 through 10 on Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT does not properly implement the Integrity Access Level (aka IL) protection mechanism, which allows remote attackers to obtain medium-integrity privileges by leveraging access to a low-integrity process, aka "Process Integrity Level Assignment Vulnerability."
CWE-264 - Permissions Privileges and Access Controls
CWE 264 (permissions, privileges, and access controls) is not a weakness in and of itself, rather it is a category of weaknesses related to the management of permissions, privileges, and other security features used to perform access control. If not addressed, the weaknesses in this category allow attackers to gain privileges for an unintended sphere of control, access sensitive information, and execute arbitrary commands.