# CVE-2002-1071

## Summary

- **CVE ID:** CVE-2002-1071
- **Severity:** UNKNOWN
- **CVSS Score:** 0.26
- **CWE:** N/A
- **Published:** Aug 31, 2002
- **Last Modified:** Mar 16, 2026

## Description

ZyXEL Prestige 642R allows remote attackers to cause a denial of service in the Telnet, FTP, and DHCP services (crash) via a TCP packet with both the SYN and ACK flags set.

## Affected Products

- n/a — n/a (n/a)

## References

- [CNA](http://online.securityfocus.com/archive/1/277307)
- [CNA](http://www.iss.net/security_center/static/9372.php)
- [CNA](http://www.securityfocus.com/bid/5034)
- [CNA](http://online.securityfocus.com/archive/1/277242)
- [CNA](http://online.securityfocus.com/archive/1/277303)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 6.38%
- **EPSS Percentile:** 90.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._