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CVE-2019-3646

Status: ModifiedMedium (6.5)—

DLL Search Order Hijacking vulnerability in Microsoft Windows client in McAfee Total Protection (MTP) Free Antivirus Trial 16.0.R18 and earlier allows local users to execute arbitrary code via execution from a compromised folder placed by an attacker with administrator rights.

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)

Mcafee — Total Protection

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2019-3646",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "trellixpsirt@trellix.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.9,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:H/A:L",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 5.3,
        "exploitabilityScore": 1.1
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 0.6
      }
    ]
  },
  "affected": [
    {
      "source": "trellixpsirt@trellix.com",
      "affectedData": [
        {
          "vendor": "McAfee, LLC",
          "product": "McAfee Total Protection - Free Antivirus Trial",
          "versions": [
            {
              "status": "affected",
              "version": "16.0",
              "versionType": "custom",
              "lessThanOrEqual": "16.0.R18"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-09-13T13:15:11.620",
  "references": [
    {
      "url": "http://service.mcafee.com/FAQDocument.aspx?&id=TS102968",
      "source": "trellixpsirt@trellix.com"
    },
    {
      "url": "http://service.mcafee.com/FAQDocument.aspx?&id=TS102968",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "trellixpsirt@trellix.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-714"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-426"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "DLL Search Order Hijacking vulnerability in Microsoft Windows client in McAfee Total Protection (MTP) Free Antivirus Trial 16.0.R18 and earlier allows local users to execute arbitrary code via execution from a compromised folder placed by an attacker with administrator rights."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Secuestro de Órdenes de Búsqueda de DLL en cliente Microsoft Windows en McAfee Total Protection (MTP) Free Antivirus Trial versión 16.0.R18 y anteriores, permite a usuarios locales ejecutar código arbitrario mediante la ejecución desde una carpeta comprometida colocada por parte de un atacante con derechos de administrador."
    }
  ],
  "lastModified": "2026-06-17T02:35:20.600",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mcafee:total_protection:*:*:*:*:free_trial:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "958A9364-06E1-4E80-A191-86BE8DDB5CF9",
              "versionEndIncluding": "16.0.r18"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "trellixpsirt@trellix.com"
}