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CVE-2025-29969

Windows - Fundamentals

Microsoft CVSS 7.5 Updated March 12, 2026

Executive Risk Summary

"A time-of-check time-of-use (toctou) race condition in Windows Fundamentals allows an authorized attacker to execute code over a network, potentially leading to code execution and system compromise. This vulnerability poses a significant risk to Windows systems, as it can be exploited by an attacker with network access."

Operational Audit Arsenal

Target Type Executable
Target Asset unknown
Standard Path %windir%\System32
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: unknown (Executable)
$Targets = 'unknown'
$SearchPaths = @("$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

Windows Fundamentals services

Internal Work Notes

CVE-2025-29969: Windows Fundamentals toctou vulnerability, potential code execution risk, requires patching and reboot

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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.