Microsoft » Windows 7 : Security Vulnerabilities, CVEs, Published In April 2015 CVSS score >= 6

Win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Vista SP2, and Server 2008 SP2 allows local users to gain privileges via a crafted application, as exploited in the wild in April 2015, aka "Win32k Elevation of Privilege Vulnerability."

Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, and Windows 7 SP1 allow remote attackers to execute arbitrary code via a crafted Enhanced Metafile (EMF) image, aka "EMF Processing Remote Code Execution Vulnerability."

Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 do not properly constrain impersonation levels, which allows local users to gain privileges via a crafted application, aka "Windows MS-DOS Device Name Vulnerability."

Microsoft Windows Server 2003 R2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 do not properly constrain impersonation levels, which allows local users to gain privileges via a crafted application, aka "NtCreateTransactionManager Type Confusion Vulnerability."

HTTP.sys in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8, Windows 8.1, and Windows Server 2012 Gold and R2 allows remote attackers to execute arbitrary code via crafted HTTP requests, aka "HTTP.sys Remote Code Execution Vulnerability."

Task Scheduler in Microsoft Windows 7 SP1 and Windows Server 2008 R2 SP1 allows local users to gain privileges by triggering application execution by an invalid task, aka "Task Scheduler Elevation of Privilege Vulnerability."