Unrated severityNVD Advisory· Published Aug 14, 2001· Updated Jun 16, 2026

CVE-2001-1135

Description

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.

Affected products

Zyxel/Prestige
cpe:2.3:h:zyxel:prestige:642r:*:*:*:*:*:*:*
Zyxel/Prestige 642Rllm-fuzzy

Patches

Vulnerability mechanics

References

www.securityfocus.com/archive/1/204439nvdVendor Advisory
www.securityfocus.com/archive/1/214971nvdVendor Advisory
www.securityfocus.com/bid/3346nvdVendor Advisory
www.securityfocus.com/archive/1/203022nvd
www.securityfocus.com/archive/1/203592nvd
exchange.xforce.ibmcloud.com/vulnerabilities/7146nvd

News mentions

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