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CVE-2026-100209

🗓️ 13 Oct 2026 19:01:30Reported by microsoftType 
cve
 cve
🔗 web.nvd.nist.gov👁 6 Views

Use after free in Microsoft Office Excel allows remote code execution.

Related
Detection
Affected
Refs
Vulners
CNA
Node
OR
microsoftmicrosoft_365_appsMatch16.0.1enterprisex32
microsoftmicrosoft_365_appsMatch16.0.1enterprisex64
Node
OR
microsoftoffice_2024Range16.0.0–16.0.17932.21056ltscx32
microsoftoffice_2024Range16.0.0–16.0.17932.21056ltscx64
Node
microsoftmicrosoft_office_2021Match16.0.1ltscmacos
Node
microsoftmicrosoft_office_2024Match16.0.0ltscmacos
[
  {
    "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": "publication",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Office LTSC 2024",
    "platforms": [
      "32-bit Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "16.0.0",
        "lessThan": "16.0.17932.21056",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Office LTSC for Mac 2021",
    "versions": [
      {
        "version": "16.0.1",
        "lessThan": "publication",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Office LTSC for Mac 2024",
    "versions": [
      {
        "version": "16.0.0",
        "lessThan": "publication",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  }
]

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13 Oct 2026 22:25Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.18.8
EPSS0.00839
SSVC
6