CVE-2026-5509

HIGH
MEDIUM Priority: 0.21 BB Relevance: 47/100
Published: 2026-05-27 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Adjacent Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Adjacent
AC: Low
PR: High
UI: None
S: X
AT: None
VC: High
VI: High
VA: High

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.

Weakness Classification (2)

Affected Software (2)

VendorProductVersion
tp-link archer_be450_firmware < 1.3.0
tp-link archer_be7200_firmware < 1.3.0

Bug Bounty Relevance

47 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

8.5 / 10.0 v4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

2.46%
Raw Score 0.024580
Percentile 84.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.02458
2026-10-28
0.02458

Intelligence Sources

nvd ref →