CVE-2026-3227

Published Mar 16, 2026

Last updated 24 days ago

Overview

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.
Source
f23511db-6c3e-4e32-a477-6aa17d310630
NVD status
Analyzed
Products
tl-wr802n_firmware, tl-wr841n_firmware, tl-wr840n_firmware

Risk scores

CVSS 4.0

Type
Secondary
Base score
8.5
Impact score
-
Exploitability score
-
Vector string
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity
HIGH

CVSS 3.1

Type
Primary
Base score
6.8
Impact score
5.9
Exploitability score
0.9
Vector string
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Severity
MEDIUM

Weaknesses

f23511db-6c3e-4e32-a477-6aa17d310630
CWE-78

Social media

Hype score
Not currently trending

Configurations