CVE-2026-41925
Deferred Deferred - Pending Action
OS Command Injection in WDR201A WiFi Extender

Publication date: 2026-05-04

Last updated on: 2026-05-04

Assigner: VulnCheck

Description
WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the adm.cgi binary's reboot_time function that allows unauthenticated remote attackers to execute arbitrary shell commands by injecting malicious input into the reboot_time POST parameter. Attackers can send a crafted request with shell metacharacters in the reboot_time parameter when reboot_enabled=1 to achieve remote code execution.
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Meta Information
Published
2026-05-04
Last Modified
2026-05-04
Generated
2026-05-07
AI Q&A
2026-05-05
EPSS Evaluated
2026-05-05
NVD
CVE-2026-41925
Affected Vendors & Products
Currently, no data is known.
Helpful Resources
Exploitability
CWE
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KEV
KEV Icon
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?

This vulnerability exists in the WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) within the adm.cgi binary's reboot_time function. It is an OS command injection flaw that allows unauthenticated remote attackers to execute arbitrary shell commands by injecting malicious input into the reboot_time POST parameter.

Attackers can exploit this by sending a specially crafted request containing shell metacharacters in the reboot_time parameter when reboot_enabled is set to 1, resulting in remote code execution on the device.


How can this vulnerability impact me? :

This vulnerability can have severe impacts as it allows unauthenticated remote attackers to execute arbitrary commands on the affected device.

  • Attackers could take full control of the WiFi extender remotely.
  • They could disrupt network operations by rebooting or altering device behavior.
  • It could be used as a foothold to launch further attacks within the network.

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