CVE-2025-70998

9.8 criticalEPSS 0.5%

Critical (9.8) in utt 810 firmware. 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.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
CWE: CWE-1188
Published: 2026-02-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

utt:810_firmware

References

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

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