Home Microsoft CVE-2015-1701
CRITICAL: THIS VULNERABILITY IS ACTIVELY BEING EXPLOITED IN THE WILD (CISA KEV CATALOG)
Back to Microsoft

CVE-2015-1701

Exploited

Windows - Win32k.sys

Microsoft CVSS 7.8 Updated April 30, 2026

Executive Risk Summary

"A local elevation of privilege vulnerability exists in Windows due to a flaw in the Win32k.sys kernel-mode driver, allowing an attacker to gain elevated privileges. This vulnerability can be exploited by a crafted application, potentially leading to unauthorized access and control of the system."

Anticipated Attack Path

  1. 1. Initial exploitation of the vulnerability through a crafted application
  2. 2. Elevation of privileges to gain access to sensitive system resources
  3. 3. Potential lateral movement and further exploitation of the compromised system

Am I Vulnerable?

  • Verify the presence of the Win32k.sys driver
  • Check for any suspicious or unauthorized applications running on the system
  • Monitor system logs for indicators of potential exploitation

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

Potential disruption to system services and applications

Internal Work Notes

CVE-2015-1701: Windows Win32k.sys Elevation of Privilege Vulnerability - apply MS15-051 patch to mitigate

Technical Intelligence & Operational Utilities • Delivered Weekly

Intelligence Sources

Related Microsoft Threats

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