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CVE-2026-23674

Windows - MapUrlToZone

Microsoft CVSS 7.5 Updated March 15, 2026

Executive Risk Summary

"An unauthorized attacker can bypass a security feature over a network due to improper resolution of path equivalence in Windows MapUrlToZone. This vulnerability allows attackers to exploit the system, potentially leading to unauthorized access or data breaches."

Operational Audit Arsenal

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

Internet Explorer and other applications using the affected component may be affected

Internal Work Notes

CVE-2026-23674: Windows MapUrlToZone vulnerability allowing unauthorized network access. Apply patch from MSRC update guide.

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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.