← Back to CVEs

CVE-2026-3227

MEDIUM

6.8

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.

CVE Details

CVSS v3.1 Score6.8

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack VectorADJACENT_NETWORK

ComplexityLOW

Privileges RequiredHIGH

User InteractionNONE

Published3/16/2026

Last Modified4/7/2026

Sourcenvd

Honeypot Sightings0

Affected Products

tp-link:tl-wr802ntp-link:tl-wr802n_firmwaretp-link:tl-wr840ntp-link:tl-wr840n_firmwaretp-link:tl-wr841ntp-link:tl-wr841n_firmware

Weaknesses (CWE)

CWE-78

References

https://www.tp-link.com/en/support/download/tl-wr802n/v4/#Firmware(f23511db-6c3e-4e32-a477-6aa17d310630)

https://www.tp-link.com/en/support/download/tl-wr840n/v6/#Firmware(f23511db-6c3e-4e32-a477-6aa17d310630)

https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware(f23511db-6c3e-4e32-a477-6aa17d310630)

https://www.tp-link.com/us/support/download/tl-wr802n/v4/#Firmware(f23511db-6c3e-4e32-a477-6aa17d310630)

https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware(f23511db-6c3e-4e32-a477-6aa17d310630)

https://www.tp-link.com/us/support/faq/5018/(f23511db-6c3e-4e32-a477-6aa17d310630)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.