{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-36540", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-05-27T13:17:20.373Z", "dateReserved": "2026-04-06T00:00:00.000Z", "datePublished": "2026-05-27T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-05-27T13:17:20.373Z"}, "descriptions": [{"lang": "en", "value": "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."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "http://netis-system.com"}, {"url": "https://github.com/sir3ns/cve-disclosure/blob/main/CVE-2026-36540/readme.md"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}}, "dataVersion": "5.2"}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-36540", "lastModified": "2026-05-27T14:16:45.637", "metrics": {}, "published": "2026-05-27T14:16:45.637", "references": [{"source": "cve@mitre.org", "url": "http://netis-system.com"}, {"source": "cve@mitre.org", "url": "https://github.com/sir3ns/cve-disclosure/blob/main/CVE-2026-36540/readme.md"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received"}

{}

{}