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CVE-2017-3898

Status: ModifiedMedium (5.9)—

A man-in-the-middle attack vulnerability in the non-certificate-based authentication mechanism in McAfee LiveSafe (MLS) versions prior to 16.0.3 allows network attackers to modify the Windows registry value associated with the McAfee update via the HTTP backend-response.

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 — Livesafe

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2017-3898",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 5.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "secure@intel.com",
      "affectedData": [
        {
          "vendor": "McAfee",
          "product": "Live Safe",
          "versions": [
            {
              "status": "affected",
              "version": "16.0.3"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-09-01T13:29:00.537",
  "references": [
    {
      "url": "http://service.mcafee.com/FAQDocument.aspx?lc=1033&id=TS102723",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@intel.com"
    },
    {
      "url": "http://service.mcafee.com/FAQDocument.aspx?lc=1033&id=TS102723",
      "tags": [
        "Vendor 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": "A man-in-the-middle attack vulnerability in the non-certificate-based authentication mechanism in McAfee LiveSafe (MLS) versions prior to 16.0.3 allows network attackers to modify the Windows registry value associated with the McAfee update via the HTTP backend-response."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de tipo ataque Man-in-the-Middle (MitM) en el mecanismo de autenticación no basado en certificados en McAfee LiveSafe (MLS) en versiones anteriores a la 16.0.3 permite que atacantes en red modifiquen el valor de registro de Windows asociado con la actualización McAfee mediante una respuesta backend HTTP."
    }
  ],
  "lastModified": "2026-06-17T01:19:09.120",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mcafee:livesafe:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7D213D39-7A5C-4A34-85EF-7F5D1665524C",
              "versionEndIncluding": "16.0.2"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@intel.com"
}