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CVE-2026-20817

Windows - Error Reporting

Microsoft CVSS 7.8 Updated March 15, 2026

Executive Risk Summary

"An elevation of privilege vulnerability exists in Windows Error Reporting due to improper handling of insufficient permissions or privileges, allowing an authorized attacker to elevate privileges locally. This vulnerability can be exploited by an attacker to gain elevated access to sensitive data and systems."

Operational Audit Arsenal

Target Type System Component
Target Asset wer.dll
Standard Path %windir%\System32
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: wer.dll (System Component)
$Targets = 'wer.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

Moderate

Internal Work Notes

Elevation of Privilege vulnerability in Windows Error Reporting, requiring patching to prevent local privilege escalation

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Intelligence Sources

Related Microsoft Threats

Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.