CVE-2025-68706

critical

Description

A stack-based buffer overflow exists in the GoAhead-Webs HTTP daemon on KuWFi 4G LTE AC900 devices with firmware 1.0.13. The /goform/formMultiApnSetting handler uses sprintf() to copy the user-supplied pincode parameter into a fixed 132-byte stack buffer with no bounds checks. This allows an attacker to corrupt adjacent stack memory, crash the web server, and (under certain conditions) may enable arbitrary code execution.

References

https://kuwfi.com/products/kuwfi-gigabit-wireless-router-4g-lte-wifi-router-dual-band-portable-wifi-modem-hotspot-64-user-with-gigabit-wan-lan-rj11-port

https://github.com/actuator/cve/tree/main/Kuwfi

https://github.com/actuator/cve/blob/main/Kuwfi/CVE-2025-68706.txt

https://drive.proton.me/urls/HJCJYAC7JM#XtHcm3P7QaYk

Details

Source: Mitre, NVD

Published: 2025-12-29

Updated: 2025-12-29

Risk Information

CVSS v2

Base Score: 9.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical