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Vulnerability · Published May 27, 2026 · Assigned by TPLink

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

High 8.5

In plain English

A high-severity improper input validation in Archer BE450 v1 from TP-Link Systems Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.5% (higher than 84% of all known vulnerabilities).

Severity (CVSS 4.0)8.5High
Exploit odds (30 days)2.5%top 15.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
TP-Link Systems Inc. Archer BE7200 V1 0 – before 1.3.0 Build 20260416
TP-Link Systems Inc. Archer BE450 v1 0 – before 1.3.0 Build 20260416

Weakness: CWE-20 · 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

References