CVE-2025-20206 | Cisco Secure Client - Secure Firewall Posture Engine Operational Intel

Executive Risk Summary

"A vulnerability in the interprocess communication (IPC) channel of Cisco Secure Client for Windows could allow an authenticated, local attacker to perform a DLL hijacking attack, potentially executing arbitrary code with SYSTEM privileges. The attacker must have valid user credentials on the Windows system to exploit this vulnerability."

Operational Audit Arsenal

Target Type DLL

Target Asset Secure Firewall Posture Engine DLL

Standard Path %ProgramFiles%\Cisco Secure Client\*

PowerShell

# 🛠️ Senior Engineer Universal Audit
# Target: Secure Firewall Posture Engine DLL (DLL)
$Targets = 'Secure Firewall Posture Engine 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

Network connectivity and security services may be affected

Internal Work Notes

CVE-2025-20206: DLL hijacking vulnerability in Cisco Secure Client for Windows, requiring patching to prevent arbitrary code execution with SYSTEM privileges.

Technical Intelligence & Operational Utilities • Delivered Weekly

Intelligence Sources

Official Advisoryhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-secure-dll-injection-AOyzEqSg

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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.