Description

A command injection vulnerability was identified in TP-Link TL-WR802N v4, TL-WR841N v14, and TL-WR840N v6 due to improper neutralization of special elements used in an OS command. In the router configuration import function allows an authenticated attacker to upload a crafted configuration file that results in execution of OS commands with root privileges during port-trigger processing. Successful exploitation allows an authenticated attacker to execute system commands with root privileges, leading to full device compromise.

INFO

Published Date :

2026-03-13T21:38:31.666Z

Last Modified :

2026-03-17T03:55:35.442Z

Source :

TPLink
AFFECTED PRODUCTS

The following products are affected by CVE-2026-3227 vulnerability.

Vendors Products
Tp-link
  • Tl-wr802n
  • Tl-wr802n Firmware
  • Tl-wr840n
  • Tl-wr840n Firmware
  • Tl-wr841n
  • Tl-wr841n Firmware
Tp Link
  • Tl-wr840n
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-3227.

URL Resource
https://www.tp-link.com/en/support/download/tl-wr802n/v4/#Firmware cve-icon cve-icon
https://www.tp-link.com/en/support/download/tl-wr840n/v6/#Firmware cve-icon cve-icon
https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware cve-icon cve-icon
https://www.tp-link.com/us/support/download/tl-wr802n/v4/#Firmware cve-icon cve-icon
https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware cve-icon cve-icon
https://www.tp-link.com/us/support/faq/5018/ cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact