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VULNERABILITIES

CVE-2026-3227 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.8 MEDIUMVector: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

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URLSource(s)Tag(s)
https://www.tp-link.com/en/support/download/tl-wr802n/v4/#Firmware TPLinkProduct
https://www.tp-link.com/en/support/download/tl-wr840n/v6/#Firmware TPLinkProduct
https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware TPLinkProduct
https://www.tp-link.com/us/support/download/tl-wr802n/v4/#Firmware TPLinkProduct
https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware TPLinkProduct

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')TPLink

Affected Products

ProductVersions

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-3227
NVD Published Date:
Mar 16, 2026
NVD Last Modified:
Jul 1, 2026
Source:
TPLink
CVE-2026-3227 Details - Not Deferred