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

> Remote attackers can execute code by connecting to an insecure named pipe accessible to everyone, allowing redirection to a rogue server.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/AU:Y/R:U/V:C/RE:M/U:Amber`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 May 2025
- **Updated:** 21 Aug 2025
- **Also known as:** GHSA-86pc-jx85-mvrw

## What is CVE-2025-4660?

CVE-2025-4660 is a high-severity missing authorization vulnerability in Forescout SecureConnector, published on 13 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official 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.

Weakness: CWE-276 (Incorrect Default Permissions)

## Which versions are affected by CVE-2025-4660?

It affects 1 product.


Products: Forescout Secureconnector.

## How do I fix CVE-2025-4660?

No fix has been published for CVE-2025-4660 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-4660 being exploited?

There is no known exploitation of CVE-2025-4660 in the wild and no public exploit code.

Public exploit code:

- PoC for CVE-2025-4660 demonstrating exploitation of the Forescout SecureConnector on Windows (github_poc): https://github.com/NetSPI/CVE-2025-4660

## Other vulnerabilities in Forescout SecureConnector

- [CVE-2024-9950](https://insights.sbomify.com/CVE-2024-9950/): Abuse of Unauthenticated Compliance Recheck in SecureConnector (high 8.5)
- [CVE-2023-39374](https://insights.sbomify.com/CVE-2023-39374/): ForeScout NAC SecureConnector – CWE-427: Uncontrolled Search Path Element (high 7.8)
- [CVE-2016-9485](https://insights.sbomify.com/CVE-2016-9485/): Privilege escalation in Windows SecureConnector agent (high 7.8)
- [CVE-2016-9486](https://insights.sbomify.com/CVE-2016-9486/): Privilege escalation in Windows SecureConnector agent (high 7.8)
- [CVE-2024-22795](https://insights.sbomify.com/CVE-2024-22795/): Privilege escalation in n/a (high 7.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-4660 and fix it if it is affected.

What it is: CVE-2025-4660 is a high-severity missing authorization vulnerability in Forescout SecureConnector, published on 13 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-4660 in the wild and no public exploit code.

Affected product: Forescout SecureConnector. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-4660/ (Markdown: https://insights.sbomify.com/CVE-2025-4660/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-4660
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-4660
- OSV: https://osv.dev/vulnerability/CVE-2025-4660

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-4660/
Summaries are generated and may contain mistakes; the official description above is the record.