---
id: CVE-2026-93740
title: A vulnerability was identified in Totolink A3002MU Hh-B20211125.1046
summary: >-
  A vulnerability was identified in Totolink A3002MU Hh-B20211125.1046. Affected
  is the function formWlEncrypt of the file /boafrm/formWlEncrypt. The
  manipulation of the argument submit-url leads to buffer overflow. It is
  possible to initi…
severity: critical
cvss: 10
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/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: '2026-09-18'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T16:17:28.070'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93740'
references:
  - url: >-
      https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3002MU/bof-formWlEncrypt.md
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-93740'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/914019'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/407550'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/407550/cti'
    label: cna@vuldb.com
  - url: 'https://www.totolink.net/'
    label: cna@vuldb.com
  - url: >-
      https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3002MU/bof-formWlEncrypt.md
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-21T15:54:39.058662Z'
epss: 0.00609
epssPercentile: 0.47516
ingestedAt: '2026-09-18T21:53:15.793Z'
---

## Overview

A vulnerability was identified in Totolink A3002MU Hh-B20211125.1046. Affected is the function formWlEncrypt of the file /boafrm/formWlEncrypt. The manipulation of the argument submit-url leads to buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.

## Remediation

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