{
  "id": "CVE-2011-3402",
  "url": "https://spydr.io/cve/CVE-2011-3402",
  "published": "2011-11-04T21:55:04.693Z",
  "modified": "2026-06-16T23:33:14.020Z",
  "score": 8.8,
  "severity": "high",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.78138,
  "epss_percentile": 0.99568,
  "exploited": true,
  "kev": {
    "added": "2025-10-06",
    "due": "2025-10-27",
    "action": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
    "ransomware": "Unknown",
    "name": "Microsoft Windows Remote Code Execution Vulnerability",
    "notes": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-087 ; https://nvd.nist.gov/vuln/detail/CVE-2011-3402"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "microsoft"
  ],
  "products": [
    "microsoft windows 7",
    "microsoft windows server 2003",
    "microsoft windows server 2008",
    "microsoft windows vista",
    "microsoft windows xp"
  ],
  "cwes": [],
  "description": "Unspecified vulnerability in the TrueType font parsing engine in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote attackers to execute arbitrary code via crafted font data in a Word document or web page, as exploited in the wild in November 2011 by Duqu, aka \"TrueType Font Parsing Vulnerability.\"",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 8.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://blogs.mcafee.com/mcafee-labs/the-day-of-the-golden-jackal-%E2%80%93-further-tales-of-the-stuxnet-files",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://blogs.technet.com/b/msrc/archive/2011/11/03/microsoft-releases-security-advisory-2639658.aspx",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://isc.sans.edu/diary/Duqu+Mitigation/11950",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://secunia.com/advisories/49121",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://secunia.com/advisories/49122",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://technet.microsoft.com/security/advisory/2639658",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://www.securelist.com/en/blog/208193197/The_Mystery_of_Duqu_Part_Two",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "http://www.securitytracker.com/id?1027039",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://www.symantec.com/connect/w32-duqu_status-updates_installer-zero-day-exploit",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "http://www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/w32_duqu_the_precursor_to_the_next_stuxnet.pdf",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA11-347A.html",
      "tags": [
        "US Government Resource"
      ]
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA12-129A.html",
      "tags": [
        "US Government Resource"
      ]
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA12-164A.html",
      "tags": [
        "US Government Resource"
      ]
    },
    {
      "url": "http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-291-01E.pdf",
      "tags": [
        "US Government Resource"
      ]
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-087",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-034",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-039",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13998",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15290",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15645",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-3402",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2011-3402",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}