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TI-2001-01089 Aliases CVE-2001-1135GHSA-96qj-8842-2r33

ZyXEL Prestige 642R and 642R-I routers do not filter the routers' Telnet and FTP ports on…

Priority LOW 36Published · 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
Partial · Partial · Partial
Fix status
No fix listed

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

Summary

ZyXEL Prestige 642R and 642R-I routers do not filter the routers' Telnet and FTP ports on the external WAN interface from inside access, allowing someone on an internal computer to reconfigure the router, if the password is known.

Why it matters now

EPSS 0.01497 74th 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 · 1

CPEVersionsRoleVendor
cpe:2.3:h:zyxel:prestige:642r:*:*:*:*:*:*:*642rVulnerableZyxel
  • 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-2001-1135
  2. 2026-10-03 Alias added: GHSA-96qj-8842-2r33

References

—

  • 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-2002-01043 ZyXEL Prestige 642R allows remote attackers to cause a denial of service in the Telnet… 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