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CVE-2001-1135
ZyXEL Prestige 642R and 642R-I routers do not filter the routers' Telnet and FTP ports on the external WAN interface from inside access,…
High7.5EPSS 1.5%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Timeline
ID reserved
By mitre
Published
- 22 years later
· 22 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 1.5% · top 26% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (6)
- 20010810 Re: ZyXEL Prestige 642R: Exposed Admin Services on WAN with Default Password (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- prestige-wan-bypass-filter(7146) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 20010809 ZyXEL Prestige 642R: Exposed Admin Services on WAN with Default Password (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20010918 SECURITY RISK: ZyXEL ADSL Router 642R - WAN filter bypass from internal network (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 3346 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 20010814 Fwd: ZyXEL Prestige 642 Router Administration Interface Vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2001-1116 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2001-1135)Record last updated .