# CVE-2002-1667

## Summary

- **CVE ID:** CVE-2002-1667
- **Severity:** UNKNOWN
- **CVSS Score:** 0
- **CWE:** N/A
- **Published:** Jun 21, 2005
- **Last Modified:** Mar 16, 2026

## Description

The virtual memory management system in FreeBSD 4.5-RELEASE and earlier does not properly check the existence of a VM object during page invalidation, which allows local users to cause a denial of service (crash) by calling msync on an unaccessed memory map created with MAP_ANON and MAP_NOSYNC flags.

## Affected Products

- n/a — n/a (n/a)

## References

- [CNA](ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:22.mmap.asc)
- [CNA](https://exchange.xforce.ibmcloud.com/vulnerabilities/8921)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.06%
- **EPSS Percentile:** 18.2

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