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TI-2002-01043 Aliases CVE-2002-1071GHSA-932g-jw4h-6cmm

ZyXEL Prestige 642R allows remote attackers to cause a denial of service in the Telnet…

Priority LOW 29Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Partial
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

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.

Why it matters now

EPSS 0.03318 88th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:h:zyxel:prestige:310:*:*:*:*:*:*:*310VulnerableZyxel
cpe:2.3:h:zyxel:prestige:642r:*:*:*:*:*:*:*642rVulnerableZyxel
  • cpe:2.3:h:zyxel:prestige:310:*:*:*:*:*:*:* Versions 310 Vulnerable ·Zyxel
  • cpe:2.3:h:zyxel:prestige:642r:*:*:*:*:*:*:* Versions 642r Vulnerable ·Zyxel

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2002-1071
  2. 2026-10-03 Alias added: GHSA-932g-jw4h-6cmm

References

Patch 1

  • TI-2001-01089 ZyXEL Prestige 642R and 642R-I routers do not filter the routers' Telnet and FTP ports on… CVSS 2.0HIGH 7.5
  • TI-2004-01416 ZyXEL Prestige 623, 650, and 652 HW Routers, and possibly other versions, with HTTP… CVSS 2.0MEDIUM 5.0
  • TI-2002-01044 ZyXEL Prestige 642R 2.50(FA.1) and Prestige 310 V3.25(M.01), allows remote attackers to… CVSS 2.0MEDIUM 5.0
  • TI-2004-01560 Zyxel P681 running ZyNOS Vt020225a contains portions of memory in an ARP request, which… CVSS 2.0MEDIUM 5.0
  • TI-2004-00611 Prestige 650HW-31 running Rompager 4.7 software allows remote attackers to cause a denial… CVSS 2.0MEDIUM 5.0
  • TI-2005-00293 Zyxel P310, P314, P324 and Netgear RT311, RT314 running the latest firmware, allows… CVSS 2.0MEDIUM 5.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences