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CVE-2013-1342

Windows - win32k.sys

Microsoft CVSS 7.8 Updated April 30, 2026

Executive Risk Summary

"A local elevation of privilege vulnerability exists in the win32k.sys kernel-mode driver due to a multiple fetch vulnerability, allowing an attacker to gain elevated privileges. This vulnerability affects various Windows operating systems, including Windows XP, Windows Vista, Windows 7, Windows 8, and Windows Server 2003, 2008, and 2012."

Anticipated Attack Path

  1. 1. Initial exploitation of the vulnerability
  2. 2. Elevation of privileges to kernel mode
  3. 3. Execution of arbitrary code

Am I Vulnerable?

  • Verify the presence of the win32k.sys driver
  • Check for the existence of suspicious system calls
  • Monitor for unusual kernel-mode activity

Operational Audit Arsenal

Target Type System Driver
Target Asset win32k.sys
Standard Path C:\Windows\System32\drivers\win32k.sys
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: win32k.sys (System Driver)
$Targets = 'win32k.sys'
$SearchPaths = @("$env:windir\System32", "$env:ProgramFiles", "${env:ProgramFiles(x86)}")

Get-ChildItem -Path $SearchPaths -Include $Targets -Recurse -ErrorAction SilentlyContinue | 
Select-Object FullName, @{Name="Version";Expression={$_.VersionInfo.ProductVersion}}

Patch Impact Forecast

Reboot Required Likely

System restart required

Internal Work Notes

Apply MS13-076 patch to affected Windows systems to mitigate local elevation of privilege vulnerability in win32k.sys kernel-mode driver. PowerShell audit one-liner: Get-HotFix -Id KB2850851

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Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.