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CVE-2026-55133 Microsoft OneNote Remote Code Execution Vulnerability

🗓️ 14 Jul 2026 17:09:05Reported by microsoftType 
cvelist
 cvelist
🔗 www.cve.org👁 41 Views

CVE-2026-55133 describes a remote code execution vulnerability in Microsoft OneNote.

Related
Affected
Refs
[
  {
    "vendor": "Microsoft",
    "product": "Microsoft 365 Apps for Enterprise",
    "platforms": [
      "32-bit Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "16.0.1",
        "lessThan": "https://aka.ms/OfficeSecurityReleases",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Office 365 for Mac",
    "versions": [
      {
        "version": "1.0.0",
        "lessThan": "16.111.26071215",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Office LTSC for Mac 2021",
    "versions": [
      {
        "version": "16.0.1",
        "lessThan": "16.111.26071215",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Office LTSC for Mac 2024",
    "versions": [
      {
        "version": "16.0.0",
        "lessThan": "16.111.26071215",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  }
]

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24 Aug 2026 21:04Current
CVSS 3.17.8
EPSS0.00466
41