CVE-2008-1522

critical

Description

ZyXEL Prestige routers, including P-660 and P-661 models with firmware 3.40(AGD.2) through 3.40(AHQ.3), have (1) "user" as their default password for the "user" account and (2) "1234" as their default password for the "admin" account, which makes it easier for remote attackers to obtain access.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/41508

http://www.securityfocus.com/archive/1/489009/100/0/threaded

http://www.procheckup.com/Hacking_ZyXEL_Gateways.pdf

http://www.gnucitizen.org/projects/router-hacking-challenge/

Details

Source: Mitre, NVD

Published: 2008-03-26

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00585