CVE-2026-3227

6.8 MEDIUM
Published: March 16, 2026 Modified: April 07, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://www.tp-link.com/en/support/download/tl-wr802n/v4/#Firmware
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Product
https://www.tp-link.com/en/support/download/tl-wr840n/v6/#Firmware
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Product
https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Product
https://www.tp-link.com/us/support/download/tl-wr802n/v4/#Firmware
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Product
https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Product
https://www.tp-link.com/us/support/faq/5018/
Source: f23511db-6c3e-4e32-a477-6aa17d310630
Vendor Advisory

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.8 / 10.0
EPSS (Exploit Probability)
0.5%
68th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

tp-link