# CVE-2001-1047

## Summary

- **CVE ID:** CVE-2001-1047
- **Severity:** UNKNOWN
- **CVSS Score:** 0
- **CWE:** N/A
- **Published:** Feb 2, 2002
- **Last Modified:** Mar 16, 2026

## Description

Race condition in OpenBSD VFS allows local users to cause a denial of service (kernel panic) by (1) creating a pipe in one thread and causing another thread to set one of the file descriptors to NULL via a close, or (2) calling dup2 on a file descriptor in one process, then setting the descriptor to NULL via a close in another process that is created via rfork.

## Affected Products

- n/a — n/a (n/a)

## References

- [CNA](http://seclists.org/bugtraq/2001/Jun/0020.html)
- [CNA](http://www.securityfocus.com/bid/2817)
- [CNA](https://exchange.xforce.ibmcloud.com/vulnerabilities/6660)
- [CNA](https://exchange.xforce.ibmcloud.com/vulnerabilities/6661)
- [CNA](http://www.securityfocus.com/bid/2818)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.07%
- **EPSS Percentile:** 21.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._