WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the internet.cgi binary that allows unauthenticated remote attackers to execute arbitrary shell commands by injecting malicious input into the gateway POST parameter. Attackers can exploit unsanitized parameter concatenation in the set_add_routing function to inject shell commands that are executed via popen() with partial output reflected in the HTTP response.
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Affected Vendors & Products
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History
Wed, 06 May 2026 09:45:00 +0000
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Shenzhen Yuner Yipu
Shenzhen Yuner Yipu wifi Extender Wdr201a |
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Shenzhen Yuner Yipu
Shenzhen Yuner Yipu wifi Extender Wdr201a |
Tue, 05 May 2026 17:30:00 +0000
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ssvc
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Mon, 04 May 2026 19:30:00 +0000
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| Description | WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the internet.cgi binary that allows unauthenticated remote attackers to execute arbitrary shell commands by injecting malicious input into the gateway POST parameter. Attackers can exploit unsanitized parameter concatenation in the set_add_routing function to inject shell commands that are executed via popen() with partial output reflected in the HTTP response. | |
| Title | WDR201A WiFi Extender OS Command Injection via internet.cgi | |
| Weaknesses | CWE-78 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-05-04T19:10:40.161Z
Updated: 2026-05-05T14:14:19.238Z
Reserved: 2026-04-22T18:50:43.619Z
Link: CVE-2026-41923
Updated: 2026-05-05T13:09:33.227Z
Status : Deferred
Published: 2026-05-04T20:16:19.017
Modified: 2026-05-05T19:47:31.297
Link: CVE-2026-41923
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