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CVE-2006-3880

Status: ModifiedMedium (5)—💥 Exploit

Microsoft Windows NT 4.0, Windows 2000, Windows XP, and Windows Small Business Server 2003 allow remote attackers to cause a denial of service (IP stack hang) via a continuous stream of packets on TCP port 135 that have incorrect TCP header checksums and random numbers in certain TCP header fields, as demonstrated by the Achilles Windows Attack Tool. NOTE: the researcher reports that the Microsoft Security Response Center has stated "Our investigation which has included code review, review of the TCPDump, and attempts on reproing the issue on multiple fresh installs of various Windows Operating Systems have all resulted in non confirmation.

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).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Affected technologies (3)

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2006-3880",
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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          "vendor": "n/a",
          "product": "n/a",
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              "version": "n/a"
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  "published": "2006-07-27T01:04:00.000",
  "references": [
    {
      "url": "http://securityreason.com/securityalert/1282",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/441007/100/0/threaded",
      "source": "cve@mitre.org"
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      "url": "http://www.securityfocus.com/bid/19135",
      "tags": [
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      "source": "cve@mitre.org"
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  "descriptions": [
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      "value": "Microsoft Windows NT 4.0, Windows 2000, Windows XP, and Windows Small Business Server 2003 allow remote attackers to cause a denial of service (IP stack hang) via a continuous stream of packets on TCP port 135 that have incorrect TCP header checksums and random numbers in certain TCP header fields, as demonstrated by the Achilles Windows Attack Tool.  NOTE: the researcher reports that the Microsoft Security Response Center has stated \"Our investigation which has included code review, review of the TCPDump, and attempts on reproing the issue on multiple fresh installs of various Windows Operating Systems have all resulted in non confirmation."
    },
    {
      "lang": "es",
      "value": "** IMPUGNADO ** Microsoft Windows NT 4.0, Windows 2000, Windows XP, y Windows Small Business Server 2003 permite a atacantes remotos provocar denegación de servicio (manipular la pila IP) a través de un flujo continuo de paquetes sobre el puerto TCP 135 que tiene una cabecera de validación (checksum) TCP erronea y números aleatorios en ciertos campos de cabeceras TCP, como se demostró con Achilles Windows Attack Tool. NOTA: el investigador indicaque Microsoft Security Response Center ha indicado que \"Nuestra investigación que ha incluido la revisión de código, la revisión del TCPDump, e intentó reproducir el asunto en múltiples instalaciones frescas de varios sistemas operativos de Windows dieron como resultado la no confirmación\"."
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  "lastModified": "2026-06-16T22:28:00.477",
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