CVE-2002-1071
ZyXEL Prestige 642R allows remote attackers to cause a denial of service in the Telnet, FTP, and...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2002-1071- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2002-1071- Updated
- 2026-11-02
EUVDEUVD-2002-1060 No score
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.
- Record
EUVD-2002-1060- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-932g-jw4h-6cmm No score
ZyXEL Prestige 642R allows remote attackers to cause a denial of service in the Telnet, FTP, and...
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.
- Record
GHSA-932g-jw4h-6cmm- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | ZYXEL Prestige 642R Router - Malformed Packet Denial of Service | 2002-07-17 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2002-1071 is a medium vulnerability (CVSS 5.0) in Zyxel Prestige, published August 31, 2002. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 3.32%, the 88th percentile. No source names a fixed version.