CVE-2026-30703
Received Received - Intake
Command Injection in WDR201A WiFi Extender adm.cgi Endpoint

Publication date: 2026-03-18

Last updated on: 2026-03-23

Assigner: MITRE

Description
A command injection vulnerability exists in the web management interface of the WiFi Extender WDR201A (HW V2.1, FW LFMZX28040922V1.02). The adm.cgi endpoint improperly sanitizes user-supplied input provided to a command-related parameter in the sysCMD functionality.
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Meta Information
Published
2026-03-18
Last Modified
2026-03-23
Generated
2026-06-16
AI Q&A
2026-03-18
EPSS Evaluated
2026-06-15
NVD
CVE-2026-30703
EUVD
EUVD-2026-12876
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
tp-link wifi_extender_wdr201a 2.1
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
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Executive Summary

This vulnerability is a command injection issue found in the web management interface of the WiFi Extender WDR201A (hardware version 2.1, firmware LFMZX28040922V1.02). Specifically, the adm.cgi endpoint does not properly sanitize user input that is passed to a command-related parameter within the sysCMD functionality, allowing an attacker to inject and execute arbitrary commands.

Impact Analysis

Exploitation of this vulnerability could allow an attacker to execute arbitrary commands on the device remotely via the web management interface. This could lead to unauthorized control over the device, potentially compromising the network it is connected to, disrupting network services, or allowing further attacks on connected systems.

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