« Volver al listado

CVE-2021-26419

Estado: ModificadaAlta (7.5)—

Scripting Engine Memory Corruption Vulnerability

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 (1)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-26419",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.6,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:H/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "HIGH",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 4.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.6
      },
      {
        "type": "Secondary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.6
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:*"
          ],
          "vendor": "Microsoft",
          "product": "Internet Explorer 11",
          "versions": [
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "10.0.14393.4401",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "10.0.17134.2207",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "10.0.17763.1935",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "10.0.18363.1556",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "10.0.19041.982",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "10.0.10240.18931",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "6.1.7601.24597",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "6.1",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "6.3.9600.20017",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "6.3.9600.20016",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "6.2.9200.23347",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "6.2",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "Windows Server 2016",
            "Windows 10 Version 1803 for 32-bit Systems",
            "Windows 10 Version 1803 for x64-based Systems",
            "Windows 10 Version 1803 for ARM64-based Systems",
            "Windows 10 Version 1809 for 32-bit Systems",
            "Windows 10 Version 1809 for x64-based Systems",
            "Windows 10 Version 1809 for ARM64-based Systems",
            "Windows Server 2019",
            "Windows 10 Version 1909 for 32-bit Systems",
            "Windows 10 Version 1909 for x64-based Systems",
            "Windows 10 Version 1909 for ARM64-based Systems",
            "Windows 10 Version 2004 for 32-bit Systems",
            "Windows 10 Version 2004 for ARM64-based Systems",
            "Windows 10 Version 2004 for x64-based Systems",
            "Windows 10 Version 20H2 for 32-bit Systems",
            "Windows 10 Version 20H2 for ARM64-based Systems",
            "Windows 10 for 32-bit Systems",
            "Windows 10 for x64-based Systems",
            "Windows 10 Version 1607 for 32-bit Systems",
            "Windows 10 Version 1607 for x64-based Systems",
            "Windows 7 for 32-bit Systems Service Pack 1",
            "Windows 7 for x64-based Systems Service Pack 1",
            "Windows 8.1 for 32-bit systems",
            "Windows 8.1 for x64-based systems",
            "Windows RT 8.1",
            "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
            "Windows Server 2012",
            "Windows Server 2012 R2"
          ]
        },
        {
          "cpes": [
            "cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*"
          ],
          "vendor": "Microsoft",
          "product": "Internet Explorer 9",
          "versions": [
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "6.0.6003.21117",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "6.0",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "Windows Server 2008 for 32-bit Systems Service Pack 2",
            "Windows Server 2008 for x64-based Systems Service Pack 2"
          ]
        }
      ]
    }
  ],
  "published": "2021-05-11T19:15:08.837",
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/162570/Internet-Explorer-jscript9.dll-Memory-Corruption.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26419",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://packetstormsecurity.com/files/162570/Internet-Explorer-jscript9.dll-Memory-Corruption.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26419",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Scripting Engine Memory Corruption Vulnerability"
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Corrupción de la Memoria del Motor de Scripting"
    }
  ],
  "lastModified": "2026-06-17T03:43:22.570",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D7809F78-8D56-4925-A8F9-4119B973A667"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "21540673-614A-4D40-8BD7-3F07723803B0"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "9E2C378B-1507-4C81-82F6-9F599616845A"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "E01A4CCA-4C43-46E0-90E6-3E4DBFBACD64"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "7CB85C75-4D35-480E-843D-60579EC75FCB"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "6B8F3DD2-A145-4AF1-8545-CC42892DA3D1"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "E9273B95-20ED-4547-B0A8-95AD15B30372"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "AAE74AF3-C559-4645-A6C0-25C3D647AAC8"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "C2B1C231-DE19-4B8F-A4AA-5B3A65276E46"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "E93068DB-549B-45AB-8E5C-00EB5D8B5CF8"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "C6CE5198-C498-4672-AF4C-77AB4BE06C5C"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "5F422A8C-2C4E-42C8-B420-E0728037E15C"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*",
              "vulnerable": false,
              "matchCriteriaId": "AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "DB79EE26-FC32-417D-A49C-A1A63165A968"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C043EDDD-41BF-4718-BDCF-158BBBDB6360"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "5F422A8C-2C4E-42C8-B420-E0728037E15C"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}