ZyXEL Prestige 623, 650, and 652 HW Routers, and possibly other versions, with HTTP…
Priority LOW 32Published · 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 · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
ZyXEL Prestige 623, 650, and 652 HW Routers, and possibly other versions, with HTTP Remote Administration enabled, does not require a password to access rpFWUpload.html, which allows remote attackers to reset the router configuration file.
Why it matters now
EPSS 0.06566 93rd 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:zyxel:prestige:645r_a1:*:*:*:*:*:*:* | 645r_a1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:prestige:650h:*:*:*:*:*:*:* | 650h | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:prestige:650hw:*:*:*:*:*:*:* | 650hw | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:prestige:650hw_31:*:*:*:*:*:*:* | 650hw_31 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:prestige:650r:*:*:*:*:*:*:* | 650r | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zynos:3.40:*:*:*:*:*:*:* | 3.40 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zynos:is.3:*:*:*:*:*:*:* | is.3 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zynos:is.5:*:*:*:*:*:*:* | is.5 | Vulnerable | Zyxel |
- cpe:2.3:h:zyxel:prestige:645r_a1:*:*:*:*:*:*:* Versions 645r_a1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:prestige:650h:*:*:*:*:*:*:* Versions 650h Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:prestige:650hw:*:*:*:*:*:*:* Versions 650hw Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:prestige:650hw_31:*:*:*:*:*:*:* Versions 650hw_31 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:prestige:650r:*:*:*:*:*:*:* Versions 650r Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zynos:3.40:*:*:*:*:*:*:* Versions 3.40 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zynos:is.3:*:*:*:*:*:*:* Versions is.3 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zynos:is.5:*:*:*:*:*:*:* Versions is.5 Vulnerable ·Zyxel
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2004-1540
- 2026-10-03 Alias added: GHSA-v4rc-26p2-jm4g
References
More Zyxel Prestige vulnerabilities
- 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-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
- CVE-2004-1540 · CVE Program
- CVE-2004-1540 · NVD
- FIRST EPSS
- GHSA-v4rc-26p2-jm4g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences