Netis AC1200 Router NC21 V4.0.1.4296 is vulnerable to unauthenticated command injection via the /cgi-bin/skk_set.cgi endpoint. The password and new_pwd_confirm POST parameters are passed directly to the underlying OS shell without sanitization. An attacker can inject arbitrary shell commands by wrapping them in backticks (`) and encoding them in base64. Because the endpoint requires no authentication, any device on the LAN can achieve full Remote Code Execution on the router's operating system with a single HTTP POST request.
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History
Wed, 27 May 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Unauthenticated Remote Command Injection via /cgi-bin/skk_set.cgi on Netis AC1200 Router | |
| Weaknesses | CWE-78 |
Wed, 27 May 2026 14:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Netis AC1200 Router NC21 V4.0.1.4296 is vulnerable to unauthenticated command injection via the /cgi-bin/skk_set.cgi endpoint. The password and new_pwd_confirm POST parameters are passed directly to the underlying OS shell without sanitization. An attacker can inject arbitrary shell commands by wrapping them in backticks (`) and encoding them in base64. Because the endpoint requires no authentication, any device on the LAN can achieve full Remote Code Execution on the router's operating system with a single HTTP POST request. | |
| References |
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-05-27T13:17:20.373Z
Reserved: 2026-04-06T00:00:00.000Z
Link: CVE-2026-36540
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Status : Deferred
Published: 2026-05-27T14:16:45.637
Modified: 2026-05-27T20:04:31.980
Link: CVE-2026-36540
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OpenCVE Enrichment
Updated: 2026-05-27T19:15:26Z
Weaknesses