ZyXEL Prestige routers, including P-660, P-661, and P-662 models with firmware…
Priority LOW 25CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-200.
Summary
ZyXEL Prestige routers, including P-660, P-661, and P-662 models with firmware 3.40(AGD.2) through 3.40(AHQ.3), allow remote authenticated users to obtain ISP and Dynamic DNS credentials by sending a direct request for (1) WAN.html, (2) wzPPPOE.html, and (3) rpDyDNS.html, and then reading the HTML source.
Why it matters now
EPSS 0.01218 68th 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 · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:zyxel:prestige_660:h-d1:*:*:*:*:*:*:* | h-d1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:prestige_660:h-d3:*:*:*:*:*:*:* | h-d3 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:prestige_661:hw-d1:*:*:*:*:*:*:* | hw-d1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zynos:3.40:agd.2:*:*:*:*:*:* | 3.40 agd.2 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zynos:3.40:agl.3:*:*:*:*:*:* | 3.40 agl.3 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zynos:3.40:ahq.0:*:*:*:*:*:* | 3.40 ahq.0 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zynos:3.40:ahq.3:*:*:*:*:*:* | 3.40 ahq.3 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zynos:3.40:ahz.0:*:*:*:*:*:* | 3.40 ahz.0 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zynos:3.40:atm.0:*:*:*:*:*:* | 3.40 atm.0 | Vulnerable | Zyxel |
- cpe:2.3:h:zyxel:prestige_660:h-d1:*:*:*:*:*:*:* Versions h-d1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:prestige_660:h-d3:*:*:*:*:*:*:* Versions h-d3 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:prestige_661:hw-d1:*:*:*:*:*:*:* Versions hw-d1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zynos:3.40:agd.2:*:*:*:*:*:* Versions 3.40 agd.2 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zynos:3.40:agl.3:*:*:*:*:*:* Versions 3.40 agl.3 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zynos:3.40:ahq.0:*:*:*:*:*:* Versions 3.40 ahq.0 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zynos:3.40:ahq.3:*:*:*:*:*:* Versions 3.40 ahq.3 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zynos:3.40:ahz.0:*:*:*:*:*:* Versions 3.40 ahz.0 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zynos:3.40:atm.0:*:*:*:*:*:* Versions 3.40 atm.0 Vulnerable ·Zyxel
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2008-1523
- 2026-10-03 Alias added: GHSA-rhv5-x75f-g9rj
References
More Zyxel Prestige 660 vulnerabilities
- TI-2008-01461 ZyXEL Prestige routers, including P-660, P-661, and P-662 models with firmware 3.40(PE9)… CVSS 2.0HIGH 7.5
- TI-2008-01458 The SNMP service on ZyXEL Prestige routers, including P-660 and P-661 models with… CVSS 2.0HIGH 7.5
- TI-2008-01456 ZyXEL Prestige routers, including P-660 and P-661 models with firmware 3.40(AGD.2)… CVSS 2.0HIGH 7.5
- TI-2008-01455 ZyXEL Prestige routers, including P-660 and P-661 models with firmware 3.40(AGD.2)… CVSS 2.0MEDIUM 6.5
- TI-2008-01463 ZyXEL Prestige routers have a minimum password length for the admin account that is too… CVSS 2.0MEDIUM 5.0
- TI-2008-01459 The default SNMP configuration on ZyXEL Prestige routers, including P-660 and P-661… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2008-1523 · CVE Program
- CVE-2008-1523 · NVD
- FIRST EPSS
- GHSA-rhv5-x75f-g9rj · 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