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CVE-2025-21399

Target: Microsoft Edge - Chromium-based

Microsoft CVSS 7.4 Updated March 10, 2026
Threat Level HIGH

Executive Risk Summary

"A vulnerability in Microsoft Edge (Chromium-based) could allow an attacker to elevate their privileges, potentially gaining access to sensitive data and system resources. This vulnerability requires an attacker to have existing access to the system, but could still pose a significant risk if exploited."

Operational Audit Arsenal

Target Type Browser
Target Asset Microsoft Edge
Standard Path Client Workstations and Servers
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: Microsoft Edge (Browser)
$Target = "Microsoft Edge"
$SearchPaths = @("$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 Microsoft Edge (Chromium-based) update to mitigate the Elevation of Privilege Vulnerability, and consider implementing the mitigation script provided by Vicarius until the update can be applied.

Intelligence Sources

Scope of Impact

Edge Update

Original NVD Description

"Microsoft Edge (Chromium-based) Update Elevation of Privilege Vulnerability"

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