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CVE-2025-21364

Microsoft Office - Excel

Microsoft CVSS 7.8 Updated March 10, 2026

Executive Risk Summary

"A security feature bypass vulnerability exists in Microsoft Excel, which could allow an attacker to bypass security features. This vulnerability requires an attacker to trick a user into opening a malicious Excel file, potentially leading to further exploitation."

Operational Audit Arsenal

Target Type Executable
Target Asset excel.exe
Standard Path %ProgramFiles%Microsoft OfficeRootOffice16
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: excel.exe (Executable)
$Targets = 'excel.exe'
$SearchPaths = @("$env:windir\System32", "$env:ProgramFiles", "${env:ProgramFiles(x86)}")

Get-ChildItem -Path $SearchPaths -Include $Targets -Recurse -ErrorAction SilentlyContinue | 
Select-Object FullName, @{Name="Version";Expression={$_.VersionInfo.ProductVersion}}

Patch Impact Forecast

Reboot Required Unlikely

Microsoft Office services may be affected

Internal Work Notes

Apply latest Microsoft Office security updates to mitigate Excel security feature bypass vulnerability (CVE-2025-21364)

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Intelligence Sources

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Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.