{
  "cveId": "CVE-2018-8154",
  "url": "https://patchblox.com/security/cve/CVE-2018-8154",
  "summary": "CVE-2018-8154 is fixed in 7 products on 1 platform, first by KB4091243, released May 8, 2018. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "Microsoft Exchange Memory Corruption Vulnerability",
  "description": "\u003Cp\u003EA remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the System user. An attacker could then install programs; view, change, or delete data; or create new accounts.\u003C/p\u003E\n\u003Cp\u003EExploitation of the vulnerability requires that a specially crafted email be sent to a vulnerable Exchange server.\u003C/p\u003E\n\u003Cp\u003EThe security update addresses the vulnerability by correcting how Microsoft Exchange handles objects in memory.\u003C/p\u003E",
  "published": "2018-05-08T07:00:00Z",
  "severity": "Critical",
  "epss": 0.23642,
  "epssPercentile": 0.97822,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-8154",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 21",
      "fixedVersion": "",
      "fix": "KB4091243",
      "url": "https://patchblox.com/security/fix/microsoft/kb4091243",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 24",
      "fixedVersion": "",
      "fix": "KB4458321",
      "url": "https://patchblox.com/security/fix/microsoft/kb4458321",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Exchange Server 2013 Cumulative Update 19",
      "fixedVersion": "",
      "fix": "KB4092041",
      "url": "https://patchblox.com/security/fix/microsoft/kb4092041",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Exchange Server 2013 Cumulative Update 20",
      "fixedVersion": "",
      "fix": "KB4092041",
      "url": "https://patchblox.com/security/fix/microsoft/kb4092041",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Exchange Server 2013 Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4092041",
      "url": "https://patchblox.com/security/fix/microsoft/kb4092041",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Exchange Server 2016 Cumulative Update 8",
      "fixedVersion": "",
      "fix": "KB4092041",
      "url": "https://patchblox.com/security/fix/microsoft/kb4092041",
      "released": "2018-05-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Exchange Server 2016 Cumulative Update 9",
      "fixedVersion": "",
      "fix": "KB4092041",
      "url": "https://patchblox.com/security/fix/microsoft/kb4092041",
      "released": "2018-05-08T07:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T12:40:37Z"
}