CVE-2018-8382

Estado: ModificadaMedia (5.5)—

An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Microsoft Excel Viewer, Microsoft Office, Microsoft Excel.

CVSS

Versión: 3.0
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Puntuación base: 5.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 12%
Percentil entre todas las CVEs puntuadas: 96
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (5)

Microsoft — Excel Microsoft — Excel 2013 RT Microsoft — Excel Viewer Microsoft — Office Microsoft — Office Compatibility Pack

CWE

CWE-200

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2018-8382",
  "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:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Microsoft Excel Viewer",
          "versions": [
            {
              "status": "affected",
              "version": "2007 Service Pack 3"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Office",
          "versions": [
            {
              "status": "affected",
              "version": "2016 for Mac"
            },
            {
              "status": "affected",
              "version": "Compatibility Pack Service Pack 3"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Excel",
          "versions": [
            {
              "status": "affected",
              "version": "2010 Service Pack 2 (32-bit editions)"
            },
            {
              "status": "affected",
              "version": "2010 Service Pack 2 (64-bit editions)"
            },
            {
              "status": "affected",
              "version": "2013 RT Service Pack 1"
            },
            {
              "status": "affected",
              "version": "2013 Service Pack 1 (32-bit editions)"
            },
            {
              "status": "affected",
              "version": "2013 Service Pack 1 (64-bit editions)"
            },
            {
              "status": "affected",
              "version": "2016 (32-bit edition)"
            },
            {
              "status": "affected",
              "version": "2016 (64-bit edition)"
            },
            {
              "status": "affected",
              "version": "2016 Click-to-Run (C2R) for 32-bit editions"
            },
            {
              "status": "affected",
              "version": "2016 Click-to-Run (C2R) for 64-bit editions"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-08-15T17:29:07.737",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/105000",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1041463",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8382",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/105000",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1041463",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8382",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka \"Microsoft Excel Information Disclosure Vulnerability.\" This affects Microsoft Excel Viewer, Microsoft Office, Microsoft Excel."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de divulgación de información cuando Microsoft Excel no muestra correctamente los contenidos de su memoria. Esto también se conoce como \"Microsoft Excel Information Disclosure Vulnerability\". Esto afecta a Microsoft Excel Viewer, Microsoft Office y Microsoft Excel."
    }
  ],
  "lastModified": "2026-06-17T02:04:44.693",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:excel:2010:sp2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E36D981E-E56D-46C7-9486-FC691A75C497"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:excel:2013:sp1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F564117D-450D-45C4-9688-AF35F630A8A7"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "09BF0981-749E-470B-A7AC-95AD087797EF"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:excel:2016:*:*:*:click-to-run:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "14F42778-339E-4949-A43D-6E74FA9C0F43"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:excel_2013_rt:sp1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F5CFE1C2-891F-4A90-8912-82D2F2132A65"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:excel_viewer:2007:sp3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E4635DA5-27DA-43FF-92AC-A9F80218A2F0"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office:2016:*:*:*:*:mac:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AE116A39-963D-43E2-A21B-782271C4F63C"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office_compatibility_pack:-:sp3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "71AF058A-2E5D-4B11-88DB-8903C64B13C1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}