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            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "author": "ZDI",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "exploitabilityScore": 8.6,
            "id": "ZDI-18-063",
            "impactScore": 6.4,
            "integrityImpact": "PARTIAL",
            "obtainAllPrivilege": null,
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            "obtainUserPrivilege": null,
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            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
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        "cvssV3": [],
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    "_id": null,
    "data": "This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Advantech WebAccess. Authentication is not required to exploit this vulnerability.The specific flaw exists within the implementation of the 0x2721 IOCTL in the webvrpcs process. The issue results from the lack of proper validation of a user-supplied value prior to using it as a memory address in a free operation. An attacker can leverage this functionality to execute code under the context of Administrator.",
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  "id": "VAR-201801-1869",
  "iot": {
    "_id": null,
    "data": true,
    "sources": [
      {
        "db": "VARIoT devices database",
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  "last_update_date": "2022-05-17T01:52:35.867000Z",
  "patch": {
    "_id": null,
    "data": [
      {
        "title": "Advantech has issued an update to correct this vulnerability.",
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        "url": "https://ics-cert.us-cert.gov/advisories/icsa-18-004-02"
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      {
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  },
  "sources": {
    "_id": null,
    "data": [
      {
        "db": "ZDI",
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    ]
  },
  "sources_release_date": {
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        "date": "2018-01-05T00:00:00",
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        "db": "ZDI",
        "id": "ZDI-18-063",
        "ident": null
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  },
  "title": {
    "_id": null,
    "data": "Advantech WebAccess webvrpcs drawsrv Arbitrary Free Remote Code Execution Vulnerability",
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      {
        "db": "ZDI",
        "id": "ZDI-18-063"
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}