CVE-2025-70998

critical · 9.8

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.

9.8

CVSS

0.4%

EPSS (exploit prob.)

38th

EPSS percentile

2026-02-18

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-1188

Affected products

Vendor	Product	Affected versions
utt	810_firmware	1.5.0-140603
utt	810	4.0

Check a specific version with /api/v1/cve/match.

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-70998