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CVE-2025-30388

Windows - Win32K

Microsoft CVSS 7.8 Updated March 12, 2026

Executive Risk Summary

"A heap-based buffer overflow vulnerability in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally, potentially leading to system compromise. This vulnerability poses a significant risk to system security and integrity, as it can be exploited to gain unauthorized access and control."

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

High-priority patching required for Windows systems due to critical vulnerability in Win32K - GRFX component, allowing local code execution and potential system compromise.

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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.