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CVE-2025-49740

Windows - SmartScreen

Microsoft CVSS 8.8 Updated March 12, 2026

Executive Risk Summary

"A protection mechanism failure in Windows SmartScreen allows an unauthorized attacker to bypass a security feature over a network, potentially leading to malicious code execution. This vulnerability poses a significant risk to Windows systems, as it could enable attackers to evade security controls and compromise system integrity."

Operational Audit Arsenal

Target Type Executable
Target Asset smartscreen.exe
Standard Path %ProgramFiles%\Windows Defender\SmartScreen
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: smartscreen.exe (Executable)
$Targets = 'smartscreen.exe'
$SearchPaths = @("$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 Defender Service

Internal Work Notes

CVE-2025-49740: Windows SmartScreen bypass vulnerability, requires patching to prevent potential code execution attacks

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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.