Home

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.

PUBLISHED Reserved 2026-04-03 | Published 2026-05-27 | Updated 2026-06-02 | Assigner TPLink




HIGH: 8.5CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-20 Improper Input Validation

Product status

Default status
unaffected

Any version before 1.3.0 Build 20260416
affected

Default status
unaffected

Any version before 1.3.0 Build 20260416
affected

Credits

Chuya Hayakawa of 00One, Inc. finder

References

www.tp-link.com/en/support/download/archer-be450/ patch

www.tp-link.com/jp/support/download/archer-be450/ patch

www.tp-link.com/jp/support/download/archer-be7200/ patch

www.tp-link.com/us/support/faq/5102/ patch vendor-advisory

jvn.jp/en/vu/JVNVU95687008/ third-party-advisory

cve.org (CVE-2026-5509)

nvd.nist.gov (CVE-2026-5509)

Download JSON