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CVE-2025-50161

Windows - Win32K

Microsoft CVSS 7.3 Updated March 12, 2026

Executive Risk Summary

"A heap-based buffer overflow vulnerability in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally, potentially leading to unauthorized access and control of system resources. This vulnerability can be exploited by an attacker with local access to the system, making it a significant risk for systems with multiple user accounts or where users have elevated privileges."

Operational Audit Arsenal

Target Type DLL
Target Asset win32k.sys
Standard Path %windir%\System32\drivers
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: win32k.sys (DLL)
$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 stability and security services may be affected

Internal Work Notes

CVE-2025-50161: Local Privilege Escalation Vulnerability in Windows Win32K - GRFX, requires patching and reboot to mitigate

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Intelligence Sources

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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.