---
id: CVE-2026-11553
title: 'A vulnerability was found in Tenda HG7, HG9 and HG10 300001138_en_xpon'
summary: >-
  A vulnerability was found in Tenda HG7, HG9 and HG10 300001138_en_xpon. This
  affects the function formPPPEdit of the file /boaform/formPPPEdit. The
  manipulation of the argument encodename results in stack-based buffer
  overflow. The attac…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-119
  - CWE-121
vendor: Tenda
product: HG7
affected:
  - HG7 300001138_en_xpon
  - HG9 300001138_en_xpon
  - HG10 300001138_en_xpon
published: '2026-06-08'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T04:18:05.470'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-11553'
references:
  - url: 'https://github.com/xiezhihua-1127/Tenda-Stack-Overflow.git'
    label: cna@vuldb.com
  - url: 'https://github.com/xiezhihua-1127/Tenda-Stack-Overflow/blob/main/report.md'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-11553'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/836778'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/369163'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/369163/cti'
    label: cna@vuldb.com
  - url: 'https://www.tenda.com.cn/'
    label: cna@vuldb.com
tags:
  - nvd
  - exploit-available
  - cve.org
epss: 0.00477
epssPercentile: 0.38976
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/gduma-phData/patch-CVE-2026-11553'
  checkedAt: '2026-10-02T18:58:25.531Z'
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-06-08T18:49:04.954919Z'
ingestedAt: '2026-10-02T04:09:34.546Z'
---

## Overview

A vulnerability was found in Tenda HG7, HG9 and HG10 300001138_en_xpon. This affects the function formPPPEdit of the file /boaform/formPPPEdit. The manipulation of the argument encodename results in stack-based buffer overflow. The attack can be launched 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.