Home Microsoft CVE-2025-62459
Back to Microsoft

CVE-2025-62459

Microsoft Defender - Portal

Microsoft CVSS 8.3 Updated March 13, 2026

Executive Risk Summary

"A spoofing vulnerability exists in the Microsoft Defender Portal, which could allow an attacker to trick users into performing unintended actions. This vulnerability poses a significant risk to the security and integrity of the system, as it could be exploited to gain unauthorized access or disrupt services."

Operational Audit Arsenal

Target Type Web Application
Target Asset Microsoft Defender Portal
Standard Path %programfiles%Microsoft DefenderPortal
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: Microsoft Defender Portal (Web Application)
$Targets = 'Microsoft Defender Portal'
$SearchPaths = @("$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 Unlikely

Microsoft Defender services may be temporarily affected

Internal Work Notes

Apply latest security updates to Microsoft Defender to mitigate spoofing vulnerability (CVE-2025-62459)

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.