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CVE-2025-49667

Windows - Win32K

Microsoft CVSS 7.8 Updated March 12, 2026

Executive Risk Summary

"A double free vulnerability in Windows Win32K allows an authorized attacker to elevate privileges locally, potentially leading to unauthorized access to sensitive data and system resources. This vulnerability can be exploited by an attacker to gain elevated privileges and execute malicious code on the affected system."

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 services may be affected

Internal Work Notes

CVE-2025-49667: Local privilege escalation vulnerability in Windows Win32K, requiring patching and reboot to mitigate

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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.