CVE-2002-1071 json
ZyXEL Prestige 642R allows remote attackers to cause a denial of service in the Telnet, FTP, and DHCP services (crash) via a TCP packet wit…
published 2002-08-31 24 y ago modified 2026-06-16 4 mo ago also EUVD-2002-1060
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.3%
- EPSS 3.3% chance of exploitation in 30 days, percentile 88%
- public exploits
- 1
- Exploit-DB
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.
Patch / fix
- iss.net/security_center/static/9372.php advisory
- securityfocus.com/bid/5034 advisory
Timeline
- First public exploit (EDB-21561)
- Published
Exploit prediction
3.32% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-21561 ZYXEL Prestige 642R Router - Malformed Packet Denial of Service dos, 2002-07-17
- securityfocus.com http://www.securityfocus.com/bid/5034 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
References
-
iss.net
/security_center/static/9372.php
vdb-entry, patch, vendor-advisory
-
securityfocus.com
/bid/5034
vdb-entry, exploit, patch, vendor-advisory
-
online.securityfocus.com
/archive/1/277307
mailing-list
-
online.securityfocus.com
/archive/1/277242
mailing-list
-
online.securityfocus.com
/archive/1/277303
mailing-list
Sources
- CVE List CVE-2002-1071
- NVD CVE-2002-1071
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