RCE in TP-Link Archer Be450
CVE-2026-5509
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.052 (92.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.052 · change: +0.027
Affected products
- TP-Link Archer Be450 — versions 1.0
- TP-Link Archer Be450 Firmware
- TP-Link Archer Be7200 — versions 1.0
- TP-Link Archer Be7200 Firmware
- TP-Link Systems Inc. Archer Be450 V1 — versions 0
- TP-Link Systems Inc. Archer Be7200 V1 — versions 0
Weakness classification (CWE)
References
- f23511db-6c3e-4e32-a477-6aa17d310630 (Product, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (Product, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (Product, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (vendor-advisory, patch, Vendor Advisory)
- f23511db-6c3e-4e32-a477-6aa17d310630 (third-party-advisory)
Frequently asked questions
- What is CVE-2026-5509?
- CVE-2026-5509 is a high-severity vulnerability in TP-Link Archer Be450, classified under Improper Input Validation. CVSS score: 7.2/10. Published 2026-05-27.
- How severe is CVE-2026-5509?
- High severity. CVSS v3 base score is 7.2 out of 10.