CVE-2021-42319

Estado: ModificadaMedia (5.5)—

Visual Studio Elevation of Privilege Vulnerability

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Puntuación base: 5.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.56%
Percentil entre todas las CVEs puntuadas: 45
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 (2)

Microsoft — Visual Studio 2017 Microsoft — Visual Studio 2019

CWE

CWE-269

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2021-42319",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.7,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1
      },
      {
        "type": "Secondary",
        "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": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)",
          "versions": [
            {
              "status": "affected",
              "version": "15.9.0",
              "lessThan": "15.9.41",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10)",
          "versions": [
            {
              "status": "affected",
              "version": "16.11.0",
              "lessThan": "16.11.6",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)",
          "versions": [
            {
              "status": "affected",
              "version": "16.0.0",
              "lessThan": "16.7.21",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8)",
          "versions": [
            {
              "status": "affected",
              "version": "15.0.0",
              "lessThan": "16.9.13",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-11-10T01:19:49.740",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42319",
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42319",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Visual Studio Elevation of Privilege Vulnerability"
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Elevación de Privilegios en Visual Studio"
    }
  ],
  "lastModified": "2026-08-19T17:18:02.957",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CE03B37D-72FE-4C25-BE62-9C422AEFC80E",
              "versionEndIncluding": "15.9",
              "versionStartIncluding": "15.0"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C9984FFB-8AFA-438F-B762-B98649B64B23",
              "versionEndIncluding": "16.11",
              "versionStartIncluding": "16.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}