CVE-2001-1047

Name: CVE-2001-1047
Creator: NVD / NIST
Published: 2001-06-02T04:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.27%

Last modified Jun 16, 2026

CVE-2001-1047 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

0.27%

18.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Openbsd	Openbsd	2.6
Openbsd	Openbsd	2.7
Openbsd	Openbsd	2.8
Openbsd	Openbsd	2.9

References

Timeline

Published: Jun 2, 2001
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2001-1047?

How severe is CVE-2001-1047?

Severity scoring for CVE-2001-1047 is pending analysis. The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.

How do I fix CVE-2001-1047?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2001-1047?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST