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CVE-2025-14963

HX Agent

Microsoft CVSS 7.8 Updated March 14, 2026

Executive Risk Summary

"A vulnerability in the HX Agent driver file fekern.sys allows a threat actor with local user access to gain elevated system privileges, potentially leading to unauthorized access to critical system resources. The vulnerable driver is not exploitable when the HX Agent's tamper protection is enabled, restricting communication with the driver to only the Agent's processes."

Operational Audit Arsenal

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

System Security Services

Internal Work Notes

CVE-2025-14963: HX Agent fekern.sys driver vulnerability allows elevation of privileges, patching required to prevent unauthorized access to system resources.

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.