CVE-2025-4660: Remote Code Execution in Windows Secure Connector/ HPS Inspection Engine via Insecure Named Pipe Access

9.8 CVSS

Description

A remote code execution vulnerability exists in the Windows agent component of SecureConnector due to improper access controls on a named pipe. The pipe is accessible to the Everyone group and does not restrict remote connections, allowing any network-based attacker to connect without authentication. By interacting with this pipe, an attacker can redirect the agent to communicate with a rogue server that can issue commands via the SecureConnector Agent. 

This does not impact Linux or OSX Secure Connector.

Classification

CVE ID: CVE-2025-4660

CVSS Base Severity: CRITICAL

CVSS Base Score: 9.8

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem Types

CWE-276 Incorrect Default Permissions

Affected Products

Vendor: Forescout

Product: SecureConnector

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.21% (probability of being exploited)

EPSS Percentile: 43.18% (scored less or equal to compared to others)

EPSS Date: 2025-06-07 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-4660
https://forescout.my.site.com/support/s/article/High-Severity-Vulnerability-in-Secure-Connector-HPS-Inspection-Engine-v11-3-5-and-lower

Timeline