ZTE ZXDSL 831CII has a default password of admin for the admin account, which allows remote attackers to gain administrator privileges.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9183
Reference (s):
- http://packetstormsecurity.com/files/129016/ZTE-831CII-Hardcoded-Credential-XSS-CSRF.html