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CVE-2025-27740

Windows - Active Directory Certificate Services

Microsoft CVSS 8.8 Updated March 12, 2026

Executive Risk Summary

"A weak authentication vulnerability in Windows Active Directory Certificate Services allows an authorized attacker to elevate privileges over a network, potentially leading to unauthorized access to sensitive resources. This vulnerability poses a significant risk to the security of Windows-based systems, particularly those with Active Directory Certificate Services enabled."

Operational Audit Arsenal

Target Type Service
Target Asset Active Directory Certificate Services
Standard Path %windir%\System32\certsvc.dll
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: Active Directory Certificate Services (Service)
$Targets = 'Active Directory Certificate Services'
$SearchPaths = @("$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

Certificate services may be affected

Internal Work Notes

CVE-2025-27740: Weak authentication vulnerability in Windows Active Directory Certificate Services, requiring patching to prevent privilege escalation attacks.

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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.