« Volver al listado

CVE-2018-8621

Estado: ModificadaMedia (5.5)—

Existe una vulnerabilidad de divulgación de información cuando el kernel de Windows gestiona incorrectamente los objetos en la memoria. Esto también se conoce como "Windows Kernel Information Disclosure Vulnerability". Esto afecta a Windows Server 2012, Windows 7 y Windows Server 2008 R2. El ID de este CVE es diferente de CVE-2018-8477 y CVE-2018-8622.

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 (3)

Microsoft — Windows 7Microsoft — Windows Server 2008Microsoft — Windows Server 2012

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2018-8621",
  "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:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "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:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2012",
          "versions": [
            {
              "status": "affected",
              "version": "(Server Core installation)"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows 7",
          "versions": [
            {
              "status": "affected",
              "version": "32-bit Systems Service Pack 1"
            },
            {
              "status": "affected",
              "version": "x64-based Systems Service Pack 1"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2008 R2",
          "versions": [
            {
              "status": "affected",
              "version": "Itanium-Based Systems Service Pack 1"
            },
            {
              "status": "affected",
              "version": "x64-based Systems Service Pack 1"
            },
            {
              "status": "affected",
              "version": "x64-based Systems Service Pack 1 (Server Core installation)"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-12-12T00:29:01.183",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/106085",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8621",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/106085",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8621",
      "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": "An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka \"Windows Kernel Information Disclosure Vulnerability.\" This affects Windows Server 2012, Windows 7, Windows Server 2008 R2. This CVE ID is unique from CVE-2018-8477, CVE-2018-8622."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de divulgación de información cuando el kernel de Windows gestiona incorrectamente los objetos en la memoria. Esto también se conoce como \"Windows Kernel Information Disclosure Vulnerability\". Esto afecta a Windows Server 2012, Windows 7 y Windows Server 2008 R2. El ID de este CVE es diferente de CVE-2018-8477 y CVE-2018-8622."
    }
  ],
  "lastModified": "2026-06-17T02:05:12.553",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C2B1C231-DE19-4B8F-A4AA-5B3A65276E46"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:*",
              "vulnerable": true,
              "matchCriteriaId": "B320A104-9037-487E-BC9A-62B4A6B49FD0"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*",
              "vulnerable": true,
              "matchCriteriaId": "AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}