ZTE ZXDSL 831CII has a default password of admin for the admin account, which allows remote attackers to gain administrator privileges.
http://packetstormsecurity.com/files/129016/ZTE-831CII-Hardcoded-Credential-XSS-CSRF.html
Source: Mitre, NVD
Published: 2014-12-02
Updated: 2026-06-17
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Severity: Critical
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.05171