Home Microsoft CVE-2026-26134
Back to Microsoft

CVE-2026-26134

Microsoft Office

Microsoft CVSS 7.8 Updated March 15, 2026

Executive Risk Summary

"An integer overflow or wraparound vulnerability in Microsoft Office allows an authorized attacker to elevate privileges locally, potentially leading to unauthorized access to sensitive data and system resources. This vulnerability poses a significant risk to organizations that rely on Microsoft Office for daily operations, as it could be exploited to gain elevated privileges and move laterally within the network."

Operational Audit Arsenal

Target Type DLL
Target Asset msodll40.dll
Standard Path %ProgramFiles%\Microsoft Office\Root\Office16
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: msodll40.dll (DLL)
$Targets = 'msodll40.dll'
$SearchPaths = @("$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 may be affected

Internal Work Notes

CVE-2026-26134: Microsoft Office Integer Overflow Vulnerability - Potential privilege escalation risk, recommend immediate patching

Technical Intelligence & Operational Utilities • Delivered Weekly

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.