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CVE-2025-54899

Microsoft Office Excel

Microsoft CVSS 7.8 Updated March 12, 2026

Executive Risk Summary

"A vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code locally by freeing memory not on the heap. This vulnerability poses a significant risk as it can be exploited to gain control over the affected system."

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 Likely

Microsoft Office services

Internal Work Notes

CVE-2025-54899: Microsoft Office Excel vulnerability allowing local code execution, patching required to prevent exploitation.

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Intelligence Sources

Related Microsoft Threats

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