What is CVE-2026-3814?

CVE-2026-3814 is a high-severity vulnerability in Utt Hiper 810g, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2026-03-09.

How severe is CVE-2026-3814?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Utt Hiper 810g

CVE-2026-3814

A security flaw has been discovered in UTT HiPER 810G up to 1.7.7-1711. Affected by this issue is the function strcpy of the file /goform/getOneApConfTempEntry. Performing a manipulation results in buffer overflow. It is possible to initia…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (11.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R.

Affected products

Utt Hiper 810g — versions 1.7.7-1711

Weakness classification (CWE)

References

VDB-349780 | UTT HiPER 810G getOneApConfTempEntry strcpy buffer overflow (vdb-entry, technical-description)
VDB-349780 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #769163 | UTT HiPER 810G v3v1.7.7-171114 Buffer Overflow (third-party-advisory)
github.com/whoami648/cve/blob/main/vul/9.md (exploit)

Frequently asked questions

What is CVE-2026-3814?: CVE-2026-3814 is a high-severity vulnerability in Utt Hiper 810g, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2026-03-09.
How severe is CVE-2026-3814?: High severity. CVSS v3 base score is 8.8 out of 10.