{
  "cveId": "CVE-2016-3258",
  "url": "https://patchblox.com/security/cve/CVE-2016-3258",
  "summary": "CVE-2016-3258 is fixed in 11 products on 1 platform, first by KB3172985, released July 12, 2016. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Windows File System Security Feature Bypass Vulnerability",
  "description": "\u003Cp\u003EA security feature bypass vulnerability exists in the Windows kernel that could allow an attacker to exploit time of check time of use (TOCTOU) issues in file path-based checks from a low-integrity application. An attacker who successfully exploited this vulnerability could potentially modify files outside of a low-integrity level application.\u003C/p\u003E\n\u003Cp\u003ETo exploit the vulnerability, an attacker would need to take advantage of another vulnerability to compromise the sandbox process from a low-integrity application.\u003C/p\u003E\n\u003Cp\u003EThe security update addresses the vulnerability by adding a validation check on how a low-integrity application can use certain object manager features.\u003C/p\u003E",
  "published": "2016-07-12T07:00:00Z",
  "severity": "Important",
  "cvss": 6.3,
  "epss": 0.00926,
  "epssPercentile": 0.60786,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2016-3258",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1511 for 32-bit Systems",
      "fixedVersion": "10586.494",
      "fix": "KB3172985",
      "url": "https://patchblox.com/security/fix/microsoft/kb3172985",
      "released": "2016-07-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1511 for x64-based Systems",
      "fixedVersion": "10586.494",
      "fix": "KB3172985",
      "url": "https://patchblox.com/security/fix/microsoft/kb3172985",
      "released": "2016-07-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for 32-bit Systems",
      "fixedVersion": "10240.17024",
      "fix": "KB3163912",
      "url": "https://patchblox.com/security/fix/microsoft/kb3163912",
      "released": "2016-07-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for x64-based Systems",
      "fixedVersion": "10240.17024",
      "fix": "KB3163912",
      "url": "https://patchblox.com/security/fix/microsoft/kb3163912",
      "released": "2016-07-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for 32-bit systems",
      "fixedVersion": "",
      "fix": "KB3170377",
      "url": "https://patchblox.com/security/fix/microsoft/kb3170377",
      "released": "2016-07-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for x64-based systems",
      "fixedVersion": "",
      "fix": "KB3170377",
      "url": "https://patchblox.com/security/fix/microsoft/kb3170377",
      "released": "2016-07-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows RT 8.1",
      "fixedVersion": "",
      "fix": "KB3170377",
      "url": "https://patchblox.com/security/fix/microsoft/kb3170377",
      "released": "2016-07-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB3170377",
      "url": "https://patchblox.com/security/fix/microsoft/kb3170377",
      "released": "2016-07-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB3170377",
      "url": "https://patchblox.com/security/fix/microsoft/kb3170377",
      "released": "2016-07-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB3170377",
      "url": "https://patchblox.com/security/fix/microsoft/kb3170377",
      "released": "2016-07-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB3170377",
      "url": "https://patchblox.com/security/fix/microsoft/kb3170377",
      "released": "2016-07-12T07:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-10T20:03:11Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}