Home Microsoft CVE-2025-21383
Back to Microsoft

CVE-2025-21383

Target: Office - Excel

Microsoft CVSS 7.8 Updated March 10, 2026
Threat Level HIGH

Executive Risk Summary

"A vulnerability in Microsoft Excel could allow an attacker to disclose sensitive information. This vulnerability is related to how Excel handles certain files, which could lead to unauthorized access to data."

Operational Audit Arsenal

Target Type Application
Target Asset Microsoft Excel
Standard Path User Workstations and Servers
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: Microsoft Excel (Application)
$Target = "Microsoft Excel"
$SearchPaths = @("$env:windir\System32", "$env:ProgramFiles", "${env:ProgramFiles(x86)}")

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

Patch Impact Forecast

Reboot Required Required
Service Disruption

Low to Moderate

Internal Work Notes

Apply the latest security updates from Microsoft to mitigate the vulnerability, and consider implementing additional security measures such as access controls and monitoring to detect potential exploitation attempts.

Intelligence Sources

Scope of Impact

Office (Version 2019) Office Long Term Servicing Channel (Version 2024) Excel (Version 2016) 365 Apps Office Long Term Servicing Channel (Version 2021)

Original NVD Description

"Microsoft Excel Information Disclosure Vulnerability"

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