---
id: CVE-2025-12213
title: A security vulnerability has been detected in Tenda O3 1.0.0.10(2478)
summary: >-
  A security vulnerability has been detected in Tenda O3 1.0.0.10(2478). This
  vulnerability affects the function SetValue/GetValue of the file
  /goform/setVlanConfig. Such manipulation of the argument lan leads to
  stack-based buffer overflo…
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: o3_firmware1.0.0.10(2478)
affected:
  - o3_firmware1.0.0.10(2478)
published: '2025-10-27'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T11:10:00.250'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-12213'
references:
  - url: >-
      https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setVlanConfig.md
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?ctiid.329883'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?id.329883'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?submit.673268'
    label: cna@vuldb.com
  - url: 'https://www.tenda.com.cn/'
    label: cna@vuldb.com
  - url: >-
      https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setVlanConfig.md
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00799
epssPercentile: 0.55205
ingestedAt: '2026-10-08T11:31:27.616Z'
---

## Overview

A security vulnerability has been detected in Tenda O3 1.0.0.10(2478). This vulnerability affects the function SetValue/GetValue of the file /goform/setVlanConfig. Such manipulation of the argument lan leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.

## Affected

- `o3_firmware1.0.0.10(2478)`

## Remediation

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