{
  "id": "CVE-2021-33823",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-06-18T20:15:07.767",
  "lastModified": "2022-07-12T17:42:04.277",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered on MOXA Mgate MB3180 Version 2.1 Build 18113012. Attacker could send a huge amount of TCP SYN packet to make web service's resource exhausted. Then the web server is denial-of-service."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en MOXA Mgate MB3180 Versi\u00f3n 2.1 Build 18113012. Un atacante podr\u00eda enviar una gran cantidad de paquetes TCP SYN para hacer que los recursos del servicio web sean agotados. Entonces el servidor web sufre una denegaci\u00f3n de servicio"
    }
  ],
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          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
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        "exploitabilityScore": 3.9,
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          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
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        "obtainAllPrivilege": false,
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      "type": "Primary",
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          "lang": "en",
          "value": "NVD-CWE-noinfo"
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  "references": [
    {
      "url": "https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33823.md",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
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    },
    {
      "url": "https://www.moxa.com/en/products/industrial-edge-connectivity/protocol-gateways/modbus-tcp-gateways/mgate-mb3180-mb3280-mb3480-series",
      "source": "cve@mitre.org",
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        "Vendor Advisory"
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}