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CVE-2007-1209

Status: ModifiedHigh (7.2)—

Use-after-free vulnerability in the Client/Server Run-time Subsystem (CSRSS) in Microsoft Windows Vista does not properly handle connection resources when starting and stopping processes, which allows local users to gain privileges by opening and closing multiple ApiPort connections, which leaves a "dangling pointer" to a process data structure.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Microsoft — Windows Vista

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2007-1209",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": true,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
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      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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        }
      ]
    }
  ],
  "published": "2007-04-10T21:19:00.000",
  "references": [
    {
      "url": "http://research.eeye.com/html/advisories/published/AD20070410b.html",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://secunia.com/advisories/24823",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://securityreason.com/securityalert/2531",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/219848",
      "tags": [
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      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.osvdb.org/34008",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/465233/100/0/threaded",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/466331/100/200/threaded",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/23338",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securitytracker.com/id?1017897",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA07-100A.html",
      "tags": [
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      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/1325",
      "tags": [
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      "source": "secure@microsoft.com"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-021",
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    },
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    },
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-021",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1524",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-399"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Use-after-free vulnerability in the Client/Server Run-time Subsystem (CSRSS) in Microsoft Windows Vista does not properly handle connection resources when starting and stopping processes, which allows local users to gain privileges by opening and closing multiple ApiPort connections, which leaves a \"dangling pointer\" to a process data structure."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de uso de la memoria previamente liberada en el subsistema Run-time cliente/servidor (CSRSS) en Microsoft Windows Vista, no maneja apropiadamente los recursos de conexión al iniciar y detener procesos, lo que permite a los usuarios locales alcanzar privilegios al abrir y cerrar múltiples conexiones de ApiPort, que deja un \"dangling pointer\" a una estructura de datos de proceso."
    }
  ],
  "lastModified": "2026-06-16T22:37:08.873",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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            }
          ],
          "operator": "OR"
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  ],
  "sourceIdentifier": "secure@microsoft.com"
}