CVE-2026-41924
OS Command Injection in WDR201A WiFi Extender
Publication date: 2026-05-04
Last updated on: 2026-05-04
Assigner: VulnCheck
Description
Description
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Meta Information
Affected Vendors & Products
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The vulnerability exists in the WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) within the makeRequest.cgi binary. It is an OS command injection flaw that allows unauthenticated remote attackers to execute arbitrary shell commands. This is possible by injecting malicious input into the set_time or StartSniffer functions through a specially crafted POST request. The attacker can bypass input sanitization by using ampersand-delimited parameters and execute commands up to 31 bytes in length.
How can this vulnerability impact me? :
This vulnerability can have severe impacts as it allows unauthenticated remote attackers to execute arbitrary shell commands on the affected device. This could lead to full compromise of the WiFi extender, unauthorized access to the network, data theft, disruption of network services, or use of the device as a foothold for further attacks within the network.