{
  "id": "CVE-2013-3660",
  "url": "https://spydr.io/cve/CVE-2013-3660",
  "published": "2013-05-24T20:55:01.903Z",
  "modified": "2026-06-16T23:55:35.730Z",
  "score": 7.8,
  "severity": "high",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.39318,
  "epss_percentile": 0.98571,
  "exploited": true,
  "kev": {
    "added": "2022-03-28",
    "due": "2022-04-18",
    "action": "Apply updates per vendor instructions.",
    "ransomware": "Unknown",
    "name": "Microsoft Win32k Privilege Escalation Vulnerability",
    "notes": "https://nvd.nist.gov/vuln/detail/CVE-2013-3660"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "microsoft"
  ],
  "products": [
    "microsoft windows 7",
    "microsoft windows 8",
    "microsoft windows rt",
    "microsoft windows server 2003",
    "microsoft windows server 2008",
    "microsoft windows server 2012",
    "microsoft windows vista",
    "microsoft windows xp"
  ],
  "cwes": [
    "CWE-119"
  ],
  "description": "The EPATHOBJ::pprFlattenRec function 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 and R2 SP1, Windows 7 SP1, Windows 8, and Windows Server 2012 does not properly initialize a pointer for the next object in a certain list, which allows local users to obtain write access to the PATHRECORD chain, and consequently gain privileges, by triggering excessive consumption of paged memory and then making many FlattenPath function calls, aka \"Win32k Read AV Vulnerability.\"",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 7.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://archives.neohapsis.com/archives/fulldisclosure/2013-05/0090.html",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://archives.neohapsis.com/archives/fulldisclosure/2013-05/0094.html",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://archives.neohapsis.com/archives/fulldisclosure/2013-06/0006.html",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://secunia.com/advisories/53435",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://twitter.com/taviso/statuses/309157606247768064",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "http://twitter.com/taviso/statuses/335557286657400832",
      "tags": [
        "Not Applicable"
      ]
    },
    {
      "url": "http://www.computerworld.com/s/article/9239477",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://www.exploit-db.com/exploits/25611/",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "http://www.osvdb.org/93539",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://www.reddit.com/r/netsec/comments/1eqh66/0day_windows_kernel_epathobj_vulnerability/",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ]
    },
    {
      "url": "http://www.theverge.com/2013/5/23/4358400/google-engineer-bashes-microsoft-discloses-windows-flaw",
      "tags": [
        "Press/Media Coverage"
      ]
    },
    {
      "url": "http://www.us-cert.gov/ncas/alerts/TA13-190A",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ]
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-053",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17360",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3660",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2013-3660",
  "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."
    }
  ]
}