Unrated severityNVD Advisory· Published Oct 4, 2002· Updated Apr 16, 2026

CVE-2002-1071

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

Zyxel/Prestige2 versions
cpe:2.3:h:zyxel:prestige:310:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:h:zyxel:prestige:310:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel:prestige:642r:*:*:*:*:*:*:*

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

www.iss.net/security_center/static/9372.phpnvdPatchVendor Advisory
www.securityfocus.com/bid/5034nvdExploitPatchVendor Advisory
online.securityfocus.com/archive/1/277242nvd
online.securityfocus.com/archive/1/277303nvd
online.securityfocus.com/archive/1/277307nvd

News mentions

No linked articles in our index yet.

cvss	0.000
epss	0.005
exploit	0.030
kev	0.000
patch	0.000
ransomware	0.000