Insecure Default Credentials in UTT HiPER 810 Router Firmware
CVE-2025-70998

9.8CRITICAL

Key Information:

Vendor

UTT

Status
HiPER 810 Router
Vendor
CVE Published:
18 February 2026

What is CVE-2025-70998?

The UTT HiPER 810 router firmware version 1.5.0-140603 is compromised by insecure default credentials for the telnet service. This vulnerability potentially enables remote attackers to execute unauthorized access and gain root-level privileges through specially crafted scripts. Users are strongly advised to change default credentials and implement additional security measures to protect their devices from unauthorized access and exploitation.

References

https://github.com/cha0yang1/UTT-nv810v4-telnet-backdoor

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.