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CVE-2025-59245

Microsoft Office 365 - SharePoint Online

Microsoft CVSS 9.8 Updated March 13, 2026

Executive Risk Summary

"A vulnerability in Microsoft SharePoint Online could allow an attacker to elevate their privileges, potentially leading to unauthorized access to sensitive data. This vulnerability is considered critical and should be addressed as soon as possible to prevent potential security breaches."

Operational Audit Arsenal

Target Type Web Application
Target Asset SharePoint Online
Standard Path %programfiles%Microsoft Office\root\Office16\SPOLayouts.dll
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: SharePoint Online (Web Application)
$Targets = 'SharePoint Online'
$SearchPaths = @("$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

SharePoint Online services may be affected

Internal Work Notes

Elevation of Privilege vulnerability in Microsoft SharePoint Online, requiring immediate patching to prevent potential security breaches

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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.