FKIE_CVE-2009-1926

Vulnerability from fkie_nvd - Published: 2009-09-08 22:30 - Updated: 2026-06-16 23:08
Severity
Summary
Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2 allow remote attackers to cause a denial of service (TCP outage) via a series of TCP sessions that have pending data and a (1) small or (2) zero receive window size, and remain in the FIN-WAIT-1 or FIN-WAIT-2 state indefinitely, aka "TCP/IP Orphaned Connections Vulnerability."
References
secure@microsoft.comhttp://osvdb.org/57797
secure@microsoft.comhttp://www.recurity-labs.com/content/pub/Microsoft_Windows_CVE-2009-1926
secure@microsoft.comhttp://www.securityfocus.com/archive/1/506331/100/0/threaded
secure@microsoft.comhttp://www.securityfocus.com/bid/36269
secure@microsoft.comhttp://www.us-cert.gov/cas/techalerts/TA09-251A.htmlUS Government Resource
secure@microsoft.comhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-048
secure@microsoft.comhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5965
af854a3a-2127-422b-91ae-364da2661108http://osvdb.org/57797
af854a3a-2127-422b-91ae-364da2661108http://www.recurity-labs.com/content/pub/Microsoft_Windows_CVE-2009-1926
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/506331/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/36269
af854a3a-2127-422b-91ae-364da2661108http://www.us-cert.gov/cas/techalerts/TA09-251A.htmlUS Government Resource
af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-048
af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5965
Impacted products
Vendor Product Version
microsoft windows_2000 -
microsoft windows_server_2003 *
microsoft windows_server_2008 *
microsoft windows_server_2008 -
microsoft windows_server_2008 -
microsoft windows_server_2008 -
microsoft windows_server_2008 -
microsoft windows_server_2008 -
microsoft windows_vista *
microsoft windows_vista *
microsoft windows_vista *
microsoft windows_vista -
microsoft windows_vista -
microsoft windows_vista -
microsoft windows_xp *
microsoft windows_xp *
microsoft windows_xp *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "secure@microsoft.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_2000:-:sp4:*:*:*:*:*:*",
              "matchCriteriaId": "CA2CBE65-F4B6-49AF-983C-D3CF6C172CC5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*",
              "matchCriteriaId": "4D3B5E4F-56A6-4696-BBB4-19DF3613D020",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:*:*:itanium:*:*:*:*:*",
              "matchCriteriaId": "7F6EA111-A4E6-4963-A0C8-F9336C605B6E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:-:x32:*:*:*:*:*",
              "matchCriteriaId": "26A548AB-7C40-4CB7-B024-8A2DA947F245",
              "vulnerable": true
            },
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              "matchCriteriaId": "5BE99796-BADE-40D1-AD85-03D28A466E5F",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "7AE15F6C-80F6-43A6-86DA-B92116A697A0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:x64:*:*:*:*:*",
              "matchCriteriaId": "2C9B0563-D613-497D-8F2E-515E6DA00CA5",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "BA99C751-91CB-43D4-93FF-1C12342CAF1E",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "3852BB02-47A1-40B3-8E32-8D8891A53114",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "C162FFF0-1E8F-4DCF-A08F-6C6E324ED878",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*",
              "matchCriteriaId": "0A0D2704-C058-420B-B368-372D1129E914",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_vista:-:-:x64:*:*:*:*:*",
              "matchCriteriaId": "CD560746-0AED-4646-934E-6742888FB6F2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_vista:-:sp1:*:*:*:*:*:*",
              "matchCriteriaId": "3A04E39A-623E-45CA-A5FC-25DAA0F275A3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*",
              "matchCriteriaId": "BF1AD1A1-EE20-4BCE-9EE6-84B27139811C",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "9B339C33-8896-4896-88FF-88E74FDBC543",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_xp:*:sp2:professional:*:*:*:*:*",
              "matchCriteriaId": "C29F02ED-85FC-4D22-A6DE-5F9C77ECCD70",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:*",
              "matchCriteriaId": "CE477A73-4EE4-41E9-8694-5A3D5DC88656",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2 allow remote attackers to cause a denial of service (TCP outage) via a series of TCP sessions that have pending data and a (1) small or (2) zero receive window size, and remain in the FIN-WAIT-1 or FIN-WAIT-2 state indefinitely, aka \"TCP/IP Orphaned Connections Vulnerability.\""
    },
    {
      "lang": "es",
      "value": "Microsoft Windows 2000 SP4, XP SP2 y SP3, Server 2003 SP2, Vista Gold, SP1 y SP2, y Server 2008 Gold y SP2 permiten a los atacantes remotos provocar una denegaci\u00f3n de servicio (interrupci\u00f3n de TCP) por medio de una serie de sesiones TCP que tienen datos pendientes y un tama\u00f1o de ventana de recepci\u00f3n (1) peque\u00f1a o (2) cero y permanecen en el estado FIN-WAIT-1 o FIN-WAIT-2 indefinidamente, tambi\u00e9n se conoce como \"TCP/IP Orphaned Connections Vulnerability\"."
    }
  ],
  "id": "CVE-2009-1926",
  "lastModified": "2026-06-16T23:08:22.480",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.8,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2009-1926",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-01-11T16:45:37.416398Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2009-09-08T22:30:00.390",
  "references": [
    {
      "source": "secure@microsoft.com",
      "url": "http://osvdb.org/57797"
    },
    {
      "source": "secure@microsoft.com",
      "url": "http://www.recurity-labs.com/content/pub/Microsoft_Windows_CVE-2009-1926"
    },
    {
      "source": "secure@microsoft.com",
      "url": "http://www.securityfocus.com/archive/1/506331/100/0/threaded"
    },
    {
      "source": "secure@microsoft.com",
      "url": "http://www.securityfocus.com/bid/36269"
    },
    {
      "source": "secure@microsoft.com",
      "tags": [
        "US Government Resource"
      ],
      "url": "http://www.us-cert.gov/cas/techalerts/TA09-251A.html"
    },
    {
      "source": "secure@microsoft.com",
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-048"
    },
    {
      "source": "secure@microsoft.com",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5965"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://osvdb.org/57797"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.recurity-labs.com/content/pub/Microsoft_Windows_CVE-2009-1926"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/archive/1/506331/100/0/threaded"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/36269"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "http://www.us-cert.gov/cas/techalerts/TA09-251A.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-048"
    },
    {
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      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5965"
    }
  ],
  "sourceIdentifier": "secure@microsoft.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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