CVE-2026-3227
MediumCVSS 6.8Exploitation Probability (EPSS)
Elevated risk62th percentile - higher than 62% of all known CVEs
Summary
A command injection vulnerability was found in TP-Link TL-WR802N v4, TL-WR841N v14, and TL-WR840N v6 routers. The configuration import function allows an authenticated attacker to upload a crafted configuration file, leading to OS command execution with root privileges during port-trigger processing.
Risk Assessment
Successful exploitation enables an attacker to fully compromise the device, potentially intercepting network traffic, altering configurations, or using the router as an entry point into the organization's internal network.
Recommendation
Immediately update the firmware of affected TP-Link routers to the latest version and restrict administrative panel access to trusted IP addresses only.
Original NVD description (English source)
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.