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CVE-2018-6524

Status: ModifiedHigh (7.8)—

In nProtect AVS V4.0 before 4.0.0.39, the driver file (TKFsAv.SYS) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x220c20.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Inca — Nprotect AVS

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-6524",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:C",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 8.5,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-02-02T01:29:00.527",
  "references": [
    {
      "url": "http://inca.co.kr/include_file/pdf_down/nProtect%20AVS%20V4%20Vulnerability%20Response%20Release%20Notes.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/ZhiyuanWang-Chengdu-Qihoo360/nProtectAntivirus_POC/tree/master/TKFsAv_0x220c20",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://inca.co.kr/include_file/pdf_down/nProtect%20AVS%20V4%20Vulnerability%20Response%20Release%20Notes.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/ZhiyuanWang-Chengdu-Qihoo360/nProtectAntivirus_POC/tree/master/TKFsAv_0x220c20",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In nProtect AVS V4.0 before 4.0.0.39, the driver file (TKFsAv.SYS) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x220c20."
    },
    {
      "lang": "es",
      "value": "En nProtect AVS V4.0 en versiones anteriores a la 4.0.0.39, el archivo del controlador (TKFsAv.SYS) permite que usuarios locales provoquen una denegación de servicio (BSOD) o que, posiblemente, se provoque otro impacto sin especificar debido a que no valida los valores de entrada desde IOCtl 0x220c20."
    }
  ],
  "lastModified": "2026-06-17T02:01:57.867",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:inca:nprotect_avs:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "159C43D3-E52D-424E-835C-8AB350EF5903",
              "versionEndExcluding": "4.0.0.39",
              "versionStartIncluding": "4.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "vendorComments": [
    {
      "comment": "The reported vulnerability is fixed in version 4.0.0.39 of nPrtoect AVS.<br />\nThe fixed version(V4.0.0.39) can be downloaded through the link below.<br />\nPlease download the latest version of nProtect AVS.\n<br /> <br />\nDownload link : http://avsd.nprotect.net/avs40/setup/nProtectSetup_AVS40.exe",
      "lastModified": "2018-02-21T11:54:24.110",
      "organization": "INCA Internet"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}