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CVE-2024-21378

Microsoft Outlook

Microsoft CVSS 8.8 Updated March 14, 2026

Executive Risk Summary

"A remote code execution vulnerability exists in Microsoft Outlook, which could allow an attacker to execute arbitrary code on the affected system. This vulnerability can be exploited by sending a specially crafted email to the victim, allowing the attacker to gain control of the system."

Operational Audit Arsenal

Target Type Executable
Target Asset outlook.exe
Standard Path %ProgramFiles%\Microsoft Office\Root\Office16
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: outlook.exe (Executable)
$Targets = 'outlook.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

Email services may be affected

Internal Work Notes

Apply latest Microsoft Outlook security updates to mitigate remote code execution vulnerability (CVE-2024-21378)

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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.