{
  "cveId": "CVE-2023-35388",
  "url": "https://patchblox.com/security/cve/CVE-2023-35388",
  "summary": "CVE-2023-35388 is fixed in 3 products on 1 platform, first by KB5030524, released September 12, 2023. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.",
  "title": "Microsoft Exchange Server Remote Code Execution Vulnerability",
  "description": "",
  "published": "2023-08-09T12:00:00Z",
  "severity": "Important",
  "cvss": 8,
  "cwe": "Deserialization of Untrusted Data",
  "epss": 0.06847,
  "epssPercentile": 0.94075,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation More Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35388",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Microsoft Exchange Server 2016 Cumulative Update 23",
      "fixedVersion": "",
      "fix": "KB5030524",
      "url": "https://patchblox.com/security/fix/microsoft/kb5030524",
      "released": "2023-09-12T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Exchange Server 2019 Cumulative Update 12",
      "fixedVersion": "",
      "fix": "KB5030524",
      "url": "https://patchblox.com/security/fix/microsoft/kb5030524",
      "released": "2023-09-12T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Exchange Server 2019 Cumulative Update 13",
      "fixedVersion": "",
      "fix": "KB5030524",
      "url": "https://patchblox.com/security/fix/microsoft/kb5030524",
      "released": "2023-09-12T12:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}