What is CVE-2026-4862?

CVE-2026-4862 is a high-severity vulnerability in Utt Hiper 1250gw, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2026-03-26.

How severe is CVE-2026-4862?

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

Buffer overflow in Utt Hiper 1250gw

CVE-2026-4862

A security vulnerability has been detected in UTT HiPER 1250GW up to 3.2.7-210907-180535. This issue affects the function strcpy of the file /goform/formConfigDnsFilterGlobal of the component Parameter Handler. Such manipulation of the arg…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (19.4th 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 1250gw — versions 3.2.7-210907-180535

Weakness classification (CWE)

References

VDB-353193 | UTT HiPER 1250GW Parameter formConfigDnsFilterGlobal strcpy buffer overflow (vdb-entry, technical-description)
VDB-353193 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #776230 | UTT HiPER 1250GW <=v3.2.7-210907-180535 Buffer Overflow (third-party-advisory)
github.com/kirlic123/IOTvulner/blob/main/309-1/5.md (exploit)

Frequently asked questions

What is CVE-2026-4862?: CVE-2026-4862 is a high-severity vulnerability in Utt Hiper 1250gw, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2026-03-26.
How severe is CVE-2026-4862?: High severity. CVSS v3 base score is 8.8 out of 10.