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CVE-2002-1071

MediumPublished

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...

Published: Aug 31, 2002
Updated: Aug 8, 2024
Assigning CNA: mitre
Evidence observed: Jul 17, 2002

Primary CVSS

5.0/ 10Medium

nvd · CVSS 2.0

AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS probability estimate

3.3%

Low · next 30 days

Percentile: 88.0%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

ZYXEL Prestige 642R Router - Malformed Packet Denial of ServiceExploit
Kistler Ueli · hardware · Jul 17, 2002

Responsible use

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