Severity Rating: Critical
Revision Note: V1.6 (July 29, 2014): Revised bulletin to announce that Microsoft no longer plans to enforce the stricter verification behavior as a default functionality on supported releases of Microsoft Windows. It remains available as an opt-in feature.
Summary: This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if a user or application runs or installs a specially crafted, signed portable executable (PE) file on an affected system.