{
  "cveId": "CVE-2019-0703",
  "url": "https://patchblox.com/security/cve/CVE-2019-0703",
  "summary": "CVE-2019-0703 is fixed in 38 products on 1 platform, first by KB4489882, released March 12, 2019. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on May 23, 2022. Patch Radar priority: Patch now.",
  "title": "Windows SMB Information Disclosure Vulnerability",
  "description": "\u003Cp\u003EAn information disclosure vulnerability exists in the way that the Windows SMB Server handles certain requests. An authenticated attacker who successfully exploited this vulnerability could craft a special packet, which could lead to information disclosure from the server.\u003C/p\u003E\n\u003Cp\u003ETo exploit the vulnerability, an attacker would have to be able to authenticate and send SMB messages to an impacted Windows SMB Server\u003C/p\u003E\n\u003Cp\u003EThe security update addresses the vulnerability by correcting how Windows SMB Server handles authenticated requests.\u003C/p\u003E",
  "published": "2019-03-12T07:00:00Z",
  "severity": "Important",
  "cvss": 6.5,
  "epss": 0.09385,
  "epssPercentile": 0.95433,
  "priority": "Patch now",
  "priorityTier": 1,
  "exploited": true,
  "vendorExploited": true,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Detected",
  "kev": {
    "added": "2022-05-23T00:00:00Z",
    "due": "2022-06-13T00:00:00Z",
    "ransomware": false,
    "requiredAction": "Apply updates per vendor instructions."
  },
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-0703",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1607 for 32-bit Systems",
      "fixedVersion": "14393.2848",
      "fix": "KB4489882",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489882",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1607 for x64-based Systems",
      "fixedVersion": "14393.2848",
      "fix": "KB4489882",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489882",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1703 for 32-bit Systems",
      "fixedVersion": "15063.1689",
      "fix": "KB4489871",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489871",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1703 for x64-based Systems",
      "fixedVersion": "15063.1689",
      "fix": "KB4489871",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489871",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for 32-bit Systems",
      "fixedVersion": "16299.1029",
      "fix": "KB4489886",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489886",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for ARM64-based Systems",
      "fixedVersion": "16299.1029",
      "fix": "KB4489886",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489886",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1709 for x64-based Systems",
      "fixedVersion": "16299.1029",
      "fix": "KB4489886",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489886",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for 32-bit Systems",
      "fixedVersion": "17134.648",
      "fix": "KB4489868",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489868",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for ARM64-based Systems",
      "fixedVersion": "17134.648",
      "fix": "KB4489868",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489868",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1803 for x64-based Systems",
      "fixedVersion": "17134.648",
      "fix": "KB4489868",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489868",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for 32-bit Systems",
      "fixedVersion": "17763.379",
      "fix": "KB4489899",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489899",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for ARM64-based Systems",
      "fixedVersion": "17763.379",
      "fix": "KB4489899",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489899",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1809 for x64-based Systems",
      "fixedVersion": "17763.379",
      "fix": "KB4489899",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489899",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for 32-bit Systems",
      "fixedVersion": "10240.18158",
      "fix": "KB4489872",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489872",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for x64-based Systems",
      "fixedVersion": "10240.18158",
      "fix": "KB4489872",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489872",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for 32-bit Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4489878",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489878",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for 32-bit Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4489885",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489885",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4489878",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489878",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 7 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4489885",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489885",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for 32-bit systems",
      "fixedVersion": "",
      "fix": "KB4489883",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489883",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for 32-bit systems",
      "fixedVersion": "",
      "fix": "KB4489881",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489881",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for x64-based systems",
      "fixedVersion": "",
      "fix": "KB4489883",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489883",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for x64-based systems",
      "fixedVersion": "",
      "fix": "KB4489881",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489881",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows RT 8.1",
      "fixedVersion": "",
      "fix": "KB4489881",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489881",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4489878",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489878",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4489885",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489885",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4489878",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489878",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4489885",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489885",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4489878",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489878",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4489885",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489885",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB4489876",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489876",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB4489880",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489880",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4489876",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489876",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4489880",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489880",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for Itanium-Based Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB4489876",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489876",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for Itanium-Based Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB4489880",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489880",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB4489876",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489876",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2",
      "fixedVersion": "",
      "fix": "KB4489880",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489880",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4489876",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489876",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4489880",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489880",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB4489884",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489884",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012",
      "fixedVersion": "",
      "fix": "KB4489891",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489891",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4489884",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489884",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4489891",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489891",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB4489883",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489883",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB4489881",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489881",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4489883",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489883",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4489881",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489881",
      "released": "2019-03-12T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016",
      "fixedVersion": "14393.2848",
      "fix": "KB4489882",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489882",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016 (Server Core installation)",
      "fixedVersion": "14393.2848",
      "fix": "KB4489882",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489882",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019",
      "fixedVersion": "17763.379",
      "fix": "KB4489899",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489899",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2019 (Server Core installation)",
      "fixedVersion": "17763.379",
      "fix": "KB4489899",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489899",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1709  (Server Core Installation)",
      "fixedVersion": "16299.1029",
      "fix": "KB4489886",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489886",
      "released": "2019-03-12T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server, version 1803  (Server Core Installation)",
      "fixedVersion": "17134.648",
      "fix": "KB4489868",
      "url": "https://patchblox.com/security/fix/microsoft/kb4489868",
      "released": "2019-03-12T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}