CVE-2009-2516

Estado: ModificadaAlta (7.1)—

The kernel in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold and SP1, and Server 2008 Gold does not properly validate data sent from user mode, which allows local users to gain privileges via a crafted PE .exe file that triggers a NULL pointer dereference during chain traversal, aka "Windows Kernel NULL Pointer Dereference Vulnerability."

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Puntuación base: 7.1

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.33%
Percentil entre todas las CVEs puntuadas: 70
Fecha de la puntuación: 7/10/2026

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 (5)

Microsoft — Windows 2000 Microsoft — Windows Server 2003 Microsoft — Windows Server 2008 Microsoft — Windows Vista Microsoft — Windows XP

CWE

CWE-20
CWE-476

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2009-2516",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2009-2516",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-01-21T16:36:39.680102Z"
        }
      }
    ],
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/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": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.4,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.1,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2009-10-14T10:30:01.547",
  "references": [
    {
      "url": "http://www.nsfocus.com/en/advisories/0903.html",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA09-286A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-058",
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6264",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.nsfocus.com/en/advisories/0903.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA09-286A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-058",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6264",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The kernel in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold and SP1, and Server 2008 Gold does not properly validate data sent from user mode, which allows local users to gain privileges via a crafted PE .exe file that triggers a NULL pointer dereference during chain traversal, aka \"Windows Kernel NULL Pointer Dereference Vulnerability.\""
    },
    {
      "lang": "es",
      "value": "El kernel de Microsoft Windows 2000 SP4, XP SP2 y SP3, Server 2003 SP2, Vista Gold y SP1, y Server 2008 Gold no valida apropiadamente los datos enviados desde el modo de usuario, lo que permite a los usuarios locales alcanzar privilegios por medio de un archivo PE.exe creado que desencadena una desreferencia de puntero NULL durante el salto de cadena, también se conoce como \"Windows Kernel NULL Pointer Dereference Vulnerability\"."
    }
  ],
  "lastModified": "2026-06-16T23:09:37.303",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "83E7C4A0-78CF-4B56-82BF-EC932BDD8ADF"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4D3B5E4F-56A6-4696-BBB4-19DF3613D020"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:*:*:itanium:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7F6EA111-A4E6-4963-A0C8-F9336C605B6E"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:*:*:x32:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9CFB1A97-8042-4497-A45D-C014B5E240AB"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:*:*:x64:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7F9C7616-658D-409D-8B53-AC00DC55602A"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3852BB02-47A1-40B3-8E32-8D8891A53114"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_vista:*:*:x64:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1DD1D5ED-FE7C-4ADF-B3AF-1F13E51B4FB5"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_vista:*:sp1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C162FFF0-1E8F-4DCF-A08F-6C6E324ED878"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_xp:*:sp2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9B339C33-8896-4896-88FF-88E74FDBC543"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_xp:*:sp2:professional:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C29F02ED-85FC-4D22-A6DE-5F9C77ECCD70"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_xp:*:sp2:professional_x64:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1AB9988B-5A9C-4F6D-BCCC-4D03AC6E4CF9"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_xp:*:sp2:x64:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "57ECAAA8-8709-4AC7-9CE7-49A8040C04D3"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CE477A73-4EE4-41E9-8694-5A3D5DC88656"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_xp:*:x64:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "59F0770D-0CED-4AEF-95AB-F9F9A4D6FB55"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}