CVE-2025-70998
Insecure default Telnet credentials on UTT HiPER 810 router allow remote root access.
Is CVE-2025-70998 being exploited?
Not confirmed. CVE-2025-70998 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.42% probability of exploitation in the next 30 days.
How severe is CVE-2025-70998?
CVE-2025-70998 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2025-70998?
Not known from our data. No patch reference has been recorded for CVE-2025-70998, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2025-70998 affect?
CVE-2025-70998 affects UTT HiPER 810 / nv810v4 router firmware v1.5.0-140603. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-70998?
Patch firmware when available; disable Telnet; use SSH with keys.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker can gain root on the device via Telnet with default creds, enabling full control of the router.
Immediate action required