---
id: CVE-2026-90688
title: A vulnerability was identified in Tenda W20E 15.11.0.61068_1546_841_CN_TDC
summary: >-
  A vulnerability was identified in Tenda W20E 15.11.0.61068_1546_841_CN_TDC.
  This issue affects the function formIPMacBindAdd of the component HTTP
  Handler. Such manipulation of the argument IPMacBindRule leads to stack-based
  buffer overf…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-119
  - CWE-121
vendor: Tenda
product: W20E
affected:
  - W20E 15.11.0.61068_1546_841_CN_TDC
published: '2026-09-14'
updated: '2026-09-15'
sourceUpdated: '2026-09-15T16:17:39.990'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90688'
references:
  - url: >-
      https://github.com/Amalll-Sec/router-vulnerability-research/blob/main/advisories/Tenda/W20E/formIPMacBindAdd/README.md
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-90688'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/914958'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/403221'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/403221/cti'
    label: cna@vuldb.com
  - url: 'https://www.tenda.com.cn/'
    label: cna@vuldb.com
  - url: >-
      https://github.com/Amalll-Sec/router-vulnerability-research/blob/main/advisories/Tenda/W20E/formIPMacBindAdd/README.md
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-15T15:57:29.684776Z'
epss: 0.00708
epssPercentile: 0.5141
ingestedAt: '2026-09-14T15:23:07.465Z'
---

## Overview

A vulnerability was identified in Tenda W20E 15.11.0.61068_1546_841_CN_TDC. This issue affects the function formIPMacBindAdd of the component HTTP Handler. Such manipulation of the argument IPMacBindRule leads to stack-based buffer overflow. It is possible to launch the attack remotely.

## Remediation

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