---
id: CVE-2026-86165
title: A vulnerability was found in Tenda HG10 300001138
summary: >-
  A vulnerability was found in Tenda HG10 300001138. This vulnerability affects
  the function formURL of the file /boaform/admin/formURL. Performing a
  manipulation of the argument Keywd/urlFQDN results in buffer overflow. The
  attack may be …
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-119
  - CWE-120
vendor: Tenda
product: HG10
affected:
  - HG10 300001138
published: '2026-09-06'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T14:17:31.267'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86165'
references:
  - url: >-
      https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/HG10/bof-formURL-keywd.md
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-86165'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/895583'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/895594'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/399304'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/399304/cti'
    label: cna@vuldb.com
  - url: 'https://www.tenda.com.cn/'
    label: cna@vuldb.com
  - url: >-
      https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/HG10/bof-formURL-keywd.md
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-08T13:25:42.334376Z'
epss: 0.00642
epssPercentile: 0.49018
ingestedAt: '2026-09-06T15:57:05.368Z'
---

## Overview

A vulnerability was found in Tenda HG10 300001138. This vulnerability affects the function formURL of the file /boaform/admin/formURL. Performing a manipulation of the argument Keywd/urlFQDN results in buffer overflow. The attack may be initiated remotely. The exploit has been made public and could be used.

## Remediation

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