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CVE-2025-49660

Windows - Windows Event Tracing

Microsoft CVSS 7.8 Updated March 12, 2026

Executive Risk Summary

"A use-after-free vulnerability in Windows Event Tracing 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 with local access to the system, making it a significant risk for systems with multiple user accounts or where local access is not strictly controlled."

Operational Audit Arsenal

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

Event logging services may be affected

Internal Work Notes

CVE-2025-49660: Local privilege escalation vulnerability in Windows Event Tracing, requiring patching to prevent unauthorized access

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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.