CVE-2001-1135

NONECVSS 0.0

0.0

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.

CVSS v3: —
EG Score: —
EPSS: 73.3%
KEV: Not listed

Published

August 14, 2001

Last Modified

April 16, 2026

References (12)

cve@mitrehttp://www.securityfocus.com/archive/1/203022
cve@mitrehttp://www.securityfocus.com/archive/1/203592
cve@mitrehttp://www.securityfocus.com/archive/1/204439
cve@mitrehttp://www.securityfocus.com/archive/1/214971
cve@mitrehttp://www.securityfocus.com/bid/3346
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/7146
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/203022
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/203592
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/204439
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/214971
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/3346
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/7146

Data Freshness Timeline

(refreshed 13× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(4)

What is CVE-2001-1135?

CVE-2001-1135 is a none vulnerability published on August 14, 2001. 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.

When was CVE-2001-1135 disclosed?

CVE-2001-1135 was first published in the National Vulnerability Database on August 14, 2001, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2001-1135 actively exploited?

CVE-2001-1135 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 73.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2001-1135?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2001-1135, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2001-1135

📅 Published

🔄 Last Modified

🔗 References (12)