ZTE ZXHN H108N R1A devices before ZTE.bhs.ZXHNH108NR1A.k_PE have a hardcoded password of root for the root account, which allows remote attackers to obtain administrative access via a TELNET session.
https://www.kb.cert.org/vuls/id/BLUU-9ZDJWA
https://www.kb.cert.org/vuls/id/391604
https://www.exploit-db.com/exploits/38773/
http://www.securityfocus.com/bid/77421
Source: Mitre, NVD
Published: 2015-12-30
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: 0.10589