---
id: CVE-2026-7192
title: >-
  A stack-based buffer overflow vulnerability in the Dbit T-CPE301K 4G WiFi
  minirouter allows an authenticated attacker to cause a denial of service (DoS)
  and a system reboot via a manipulated HTTP POST request directed at the
  endpoint ‘/j…
summary: >-
  A stack-based buffer overflow vulnerability in the Dbit T-CPE301K 4G WiFi
  minirouter allows an authenticated attacker to cause a denial of service (DoS)
  and a system reboot via a manipulated HTTP POST request directed at the
  endpoint ‘/j…
severity: critical
cvss: 9.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'
cwe:
  - CWE-121
vendor: Shenzhen Dbit Network Equipment
product: T-CPE301K 4G Mini WiFi Router
affected:
  - t-cpe301k_4g_mini_wifi_router < 29/09/2026
published: '2026-09-29'
updated: '2026-09-29'
sourceUpdated: '2026-09-29T15:17:28.370'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-7192'
references:
  - url: >-
      https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-t-cpe301k-4g-mini-wifi-router-shenzhen-dbit
    label: cve-coordination@incibe.es
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-29T14:37:26.485761Z'
cvssSource: cna
ingestedAt: '2026-09-29T12:33:37.300Z'
---

## Overview

A stack-based buffer overflow vulnerability in the Dbit T-CPE301K 4G WiFi minirouter allows an authenticated attacker to cause a denial of service (DoS) and a system reboot via a manipulated HTTP POST request directed at the endpoint ‘/js/common/do_cmd.js’ endpoint containing an excessively long parameter, which overwrites the PC and RA registers.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.