---
id: CVE-2026-90608
title: A flaw has been found in Totolink A3002MU Hh-B20211125.1046
summary: >-
  A flaw has been found in Totolink A3002MU Hh-B20211125.1046. The affected
  element is the function formPortFw of the file /boafrm/formPortFw of the
  component boa. This manipulation of the argument service_type causes buffer
  overflow. It i…
severity: critical
cvss: 9.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-119
  - CWE-120
vendor: Totolink
product: A3002MU
affected:
  - A3002MU Hh-B20211125.1046
published: '2026-09-14'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T15:18:33.983'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90608'
references:
  - url: >-
      https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3002MU/bof-formPortFw.md
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-90608'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/914016'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/403190'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/403190/cti'
    label: cna@vuldb.com
  - url: 'https://www.totolink.net/'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-16T14:35:54.647949Z'
epss: 0.00854
epssPercentile: 0.56485
ingestedAt: '2026-09-14T15:23:07.468Z'
---

## Overview

A flaw has been found in Totolink A3002MU Hh-B20211125.1046. The affected element is the function formPortFw of the file /boafrm/formPortFw of the component boa. This manipulation of the argument service_type causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been published and may be used.

## Remediation

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