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CVE-2019-3633

Status: ModifiedMedium (5.5)—

Buffer overflow in McAfee Data Loss Prevention (DLPe) for Windows 11.x prior to 11.3.2.8 allows local user to cause the Windows operating system to "blue screen" via a carefully constructed message sent to DLPe which bypasses DLPe internal checks and results in DLPe reading unallocated memory.

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 — Data Loss Prevention Endpoint

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2019-3633",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "trellixpsirt@trellix.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 4.4,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 0.8
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "trellixpsirt@trellix.com",
      "affectedData": [
        {
          "vendor": "McAfee, LLC",
          "product": "Data Loss Prevention (DLPe) for Windows",
          "versions": [
            {
              "status": "affected",
              "version": "11.x",
              "lessThan": "11.3.2.8",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-08-21T16:15:09.960",
  "references": [
    {
      "url": "https://kc.mcafee.com/corporate/index?page=content&id=SB10295",
      "source": "trellixpsirt@trellix.com"
    },
    {
      "url": "https://kc.mcafee.com/corporate/index?page=content&id=SB10295",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Buffer overflow in McAfee Data Loss Prevention (DLPe) for Windows 11.x prior to 11.3.2.8 allows local user to cause the Windows operating system to \"blue screen\" via a carefully constructed message sent to DLPe which bypasses DLPe internal checks and results in DLPe reading unallocated memory."
    },
    {
      "lang": "es",
      "value": "El desbordamiento del búfer en McAfee Data Loss Prevention (DLPe) para Windows 11.x anterior a 11.3.2.8 permite al usuario local hacer que el sistema operativo Windows aparezca en \"pantalla azul\" a través de un mensaje cuidadosamente elaborado enviado a DLPe que omite las comprobaciones internas de DLPe y genera DLPe leyendo memoria no asignada."
    }
  ],
  "lastModified": "2026-06-17T02:35:19.430",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mcafee:data_loss_prevention_endpoint:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5DD950B6-B87A-40F1-8C31-04E1ED32E5C9",
              "versionEndExcluding": "11.3.2.82",
              "versionStartIncluding": "11.3.0"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
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          ],
          "operator": "OR"
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      "operator": "AND"
    }
  ],
  "sourceIdentifier": "trellixpsirt@trellix.com"
}