CVE-2026-5509 HIGH

CVE-2026-5509: Arbitrary Command Injection via Browser Developer Console in TP-Link Archer BE450 and BE7200

Vendor Tp-Link Systems Inc.
Product Archer BE7200 V1
Weakness CWE-20 · Input validation
Published May 27, 2026
Last update June 2, 2026

CVSS base score

8.5/10
Attack vector Adjacent
Attack complexity Low
Privileges required High
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

An authenticated command injection vulnerability exists in the Archer BE450 v1 and BE7200 v1 router that allows an administrator to execute arbitrary system commands through the web management interface. After successfully authenticating to the admin interface, an attacker can leverage the browser’s developer console by supplying a crafted input that is passed to backend system commands without adequate sanitization. Successful exploitation enables execution of arbitrary commands with elevated privileges on the device, which may allow the attacker to start unauthorized services, modify system configuration, or otherwise fully compromise the router’s operating environment.

Key dates

02Disclosure timeline

May 27, 2026 CVE published
June 2, 2026 Record updated