{
  "cveId": "CVE-2026-55141",
  "url": "https://patchblox.com/security/cve/CVE-2026-55141",
  "summary": "CVE-2026-55141 is fixed in 3 products on 1 platform, first by KB5002886, released July 14, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Microsoft Excel Remote Code Execution Vulnerability",
  "description": "\u003Cp\u003EStack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.\u003C/p\u003E",
  "published": "2026-07-14T07:00:00Z",
  "severity": "Important",
  "cvss": 7.8,
  "cwe": "Stack-based Buffer Overflow",
  "epss": 0.00466,
  "epssPercentile": 0.40608,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55141",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Microsoft Excel 2016 (32-bit edition)",
      "fixedVersion": "",
      "fix": "KB5002886",
      "url": "https://patchblox.com/security/fix/microsoft/kb5002886",
      "released": "2026-07-14T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft Excel 2016 (64-bit edition)",
      "fixedVersion": "",
      "fix": "KB5002886",
      "url": "https://patchblox.com/security/fix/microsoft/kb5002886",
      "released": "2026-07-14T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Office Online Server",
      "fixedVersion": "",
      "fix": "KB5002884",
      "url": "https://patchblox.com/security/fix/microsoft/kb5002884",
      "released": "2026-07-14T07:00:00Z"
    }
  ],
  "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"
  }
}