---
id: CVE-2025-14655
title: A security flaw has been discovered in Tenda AC20 16.03.08.12
summary: >-
  A security flaw has been discovered in Tenda AC20 16.03.08.12. The impacted
  element is the function formSetRebootTimer of the file
  /goform/SetSysAutoRebbotCfg of the component httpd. Performing a manipulation
  of the argument rebootTime r…
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
  - CWE-787
vendor: tenda
product: ac20_firmware
affected:
  - ac20_firmware = 16.03.08.12
published: '2025-12-14'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T23:10:00.237'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-14655'
references:
  - url: >-
      https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN13/AC20_SetSysAutoRebbotCfg.md
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?ctiid.336388'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?id.336388'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?submit.712910'
    label: cna@vuldb.com
  - url: 'https://www.tenda.com.cn/'
    label: cna@vuldb.com
tags:
  - nvd
epss: 0.03327
epssPercentile: 0.88193
ingestedAt: '2026-09-30T23:29:32.490Z'
---

## Overview

A security flaw has been discovered in Tenda AC20 16.03.08.12. The impacted element is the function formSetRebootTimer of the file /goform/SetSysAutoRebbotCfg of the component httpd. Performing a manipulation of the argument rebootTime 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

- `ac20_firmware = 16.03.08.12`

## Remediation

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