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CVE-2025-21180

Windows - exFAT File System

Microsoft CVSS 7.8 Updated March 10, 2026

Executive Risk Summary

"A heap-based buffer overflow vulnerability in the Windows exFAT File System allows an unauthorized attacker to execute code locally, potentially leading to system compromise. This vulnerability poses a significant risk to system security and integrity, as it can be exploited to gain unauthorized access and control."

Operational Audit Arsenal

Target Type Driver
Target Asset exfat.sys
Standard Path %windir%System32drivers
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: exfat.sys (Driver)
$Targets = 'exfat.sys'
$SearchPaths = @("$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

File system services may be affected

Internal Work Notes

High-priority vulnerability in Windows exFAT File System requires immediate patching to prevent potential code execution and system compromise.

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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.