---
id: CVE-2025-11325
title: A security flaw has been discovered in Tenda AC18 15.03.05.19(6318)
summary: >-
  A security flaw has been discovered in Tenda AC18 15.03.05.19(6318). Affected
  by this issue is some unknown functionality of the file
  /goform/fast_setting_pppoe_set. Performing a manipulation of the argument
  Username results in stack-bas…
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: ac18_firmware
affected:
  - ac18_firmware = 15.03.05.19(6318)
published: '2025-10-06'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T10:10:00.193'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-11325'
references:
  - url: >-
      https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/AC18/fast_setting_pppoe_set.md
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?ctiid.327208'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?id.327208'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?submit.664527'
    label: cna@vuldb.com
  - url: 'https://www.tenda.com.cn/'
    label: cna@vuldb.com
tags:
  - nvd
epss: 0.00799
epssPercentile: 0.55313
ingestedAt: '2026-10-09T12:53:28.754Z'
---

## Overview

A security flaw has been discovered in Tenda AC18 15.03.05.19(6318). Affected by this issue is some unknown functionality of the file /goform/fast_setting_pppoe_set. Performing a manipulation of the argument Username results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.

## Affected

- `ac18_firmware = 15.03.05.19(6318)`

## Remediation

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