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CVE-2020-0855

Estado: ModificadaAlta (7.8)—

A remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in memory, aka 'Microsoft Word Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-0850, CVE-2020-0851, CVE-2020-0852, CVE-2020-0892.

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 (2)

Microsoft — OfficeMicrosoft — Office 365 Proplus

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2020-0855",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Microsoft Office",
          "versions": [
            {
              "status": "affected",
              "version": "2019 for Mac"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Office 365 ProPlus",
          "versions": [
            {
              "status": "affected",
              "version": "32-bit Systems"
            },
            {
              "status": "affected",
              "version": "64-bit Systems"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-03-12T16:15:18.953",
  "references": [
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0855",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0855",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in memory, aka 'Microsoft Word Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-0850, CVE-2020-0851, CVE-2020-0852, CVE-2020-0892."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de ejecución de código remota en el software Microsoft Word cuando tiene un fallo al manejar apropiadamente objetos en memoria, también se conoce como \"Microsoft Word Remote Code Execution Vulnerability\". Este ID de CVE es diferente de CVE-2020-0850, CVE-2020-0851, CVE-2020-0852, CVE-2020-0892."
    }
  ],
  "lastModified": "2026-06-17T02:46:46.300",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:office:2019:*:*:*:*:macos:*:*",
              "vulnerable": true,
              "matchCriteriaId": "40961B9E-80B6-42E0-A876-58B3CE056E4E"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office_365_proplus:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CA035812-F35A-43F1-9A8D-EE02201AA10A"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}