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CVE-2018-8378

Estado: ModificadaMedia (5.5)—

An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka "Microsoft Office Information Disclosure Vulnerability." This affects Word, Microsoft SharePoint Server, Microsoft Office Word Viewer, Microsoft Excel Viewer, Microsoft SharePoint, Microsoft Office.

CVSS

Probabilidad de explotación (EPSS)

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 (9)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2018-8378",
  "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": "Word",
          "versions": [
            {
              "status": "affected",
              "version": "Automation Services on Microsoft SharePoint Server 2010 Service Pack 2"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft SharePoint Server",
          "versions": [
            {
              "status": "affected",
              "version": "2013 Service Pack 1"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Office Word Viewer",
          "versions": [
            {
              "status": "affected",
              "version": "Microsoft Office Word Viewer"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Excel Viewer",
          "versions": [
            {
              "status": "affected",
              "version": "2007 Service Pack 3"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft SharePoint",
          "versions": [
            {
              "status": "affected",
              "version": "Enterprise Server 2013 Service Pack 1"
            },
            {
              "status": "affected",
              "version": "Enterprise Server 2016"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Office",
          "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"
            },
            {
              "status": "affected",
              "version": "Web Apps 2010 Service Pack 2"
            },
            {
              "status": "affected",
              "version": "Web Apps 2013 Service Pack 1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-08-15T17:29:07.267",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/104996",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8378",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/104996",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8378",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        },
        {
          "lang": "en",
          "value": "CWE-908"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka \"Microsoft Office Information Disclosure Vulnerability.\" This affects Word, Microsoft SharePoint Server, Microsoft Office Word Viewer, Microsoft Excel Viewer, Microsoft SharePoint, Microsoft Office."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de divulgación de información cuando el software de Microsoft Office lee memoria fuera de límites debido a una variable no inicializada, lo que podría divulgar los contenidos de memoria. Esto también se conoce como \"Microsoft Office Information Disclosure Vulnerability\". Esto afecta a Word, Microsoft SharePoint Server, Microsoft Office Word Viewer, Microsoft Excel Viewer, Microsoft SharePoint y Microsoft Office."
    }
  ],
  "lastModified": "2026-06-17T02:04:44.170",
  "configurations": [
    {
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}