CVE-2025-70998: Utt 810 Firmware

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

UTT HiPER 810 / nv810v4 router firmware v1.5.0-140603 was discovered to contain insecure default credentials for the telnet service, possibly allowing a remote attacker to gain root access via a crafted script.

Affected products

• Utt 810 Firmware: version 1.5.0-140603 only

Published 2026-02-18. Last modified 2026-06-17.