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CVE Number Vulnerability Product Severity Date
MS16-094 Security Update for Secure Boot (3177404) Windows 8.1 Important 13-07-2016

Technical Information

Brief overview of the risk:
The vulnerability could allow Secure Boot security features to be bypassed if an attacker installs an affected policy on a target device. An attacker must have either administrative privileges or physical access to install a policy and bypass Secure Boot.

Detailed Information on the risk:

A security feature bypass vulnerability exists when Windows Secure Boot improperly applies an affected policy. An attacker who successfully exploited this vulnerability could disable code integrity checks, allowing test-signed executables and drivers to be loaded on a target device. In addition, an attacker could bypass the Secure Boot Integrity Validation for BitLocker and the Device Encryption security features.

Further information on this exploit is available at : MS16-094

Windows 8.1 for 32-bit Systems
Windows 8.1 for x64-based Systems
Windows Server 2012
Windows Server 2012 R2
Windows 10 for 32-bit Systems
Windows 10 for x64-based Systems
Windows 10 Version 1511 for 32-bit Systems
Windows 10 Version 1511 for x64-based Systems
Windows Server 2012
Windows Server 2012 R2

Affected Software

Windows 8.1 for 32-bit Systems
Windows 8.1 for x64-based Systems
Windows Server 2012
Windows Server 2012 R2
Windows 10 for 32-bit Systems
Windows 10 for x64-based Systems
Windows 10 Version 1511 for 32-bit Systems
Windows 10 Version 1511 for x64-based Systems
Windows Server 2012
Windows Server 2012 R2