Vulnerability Description
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 on an affected device if the Secure Firewall Posture Engine, formerly HostScan, is installed on Cisco Secure Client. This vulnerability is due to insufficient validation of resources that are loaded by the application at run time. An attacker could exploit this vulnerability by sending a crafted IPC message to a specific Cisco Secure Client process. A successful exploit could allow the attacker to execute arbitrary code on the affected machine with SYSTEM privileges. To exploit this vulnerability, the attacker must have valid user credentials on the Windows system.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Secure Client | < 5.1.8.105 |
| Microsoft | Windows | - |
Related Weaknesses (CWE)
References
FAQ
What is CVE-2025-20206?
CVE-2025-20206 is a vulnerability with a CVSS score of 7.1 (HIGH). 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 on an affected device ...
How severe is CVE-2025-20206?
CVE-2025-20206 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-20206?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Secure Client, Microsoft Windows.