---
id: CVE-2026-86151
title: A vulnerability was detected in Tenda CP3 27.5.57.101
summary: >-
  A vulnerability was detected in Tenda CP3 27.5.57.101. The affected element is
  the function sub_2F77E8 of the file Apis/system.c of the component Network
  Configuration Management. Performing a manipulation results in os command
  injection…
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-77
  - CWE-78
vendor: Tenda
product: CP3
affected:
  - CP3 27.5.57.101
published: '2026-09-06'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T21:17:33.980'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86151'
references:
  - url: 'https://vuldb.com/cve/CVE-2026-86151'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/895352'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/399274'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/399274/cti'
    label: cna@vuldb.com
  - url: 'https://www.tenda.com.cn/'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-11T20:15:50.551027Z'
epss: 0.02043
epssPercentile: 0.80337
ingestedAt: '2026-09-06T14:56:25.861Z'
---

## Overview

A vulnerability was detected in Tenda CP3 27.5.57.101. The affected element is the function sub_2F77E8 of the file Apis/system.c of the component Network Configuration Management. Performing a manipulation results in os command injection. The attack may be initiated remotely.

## Remediation

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