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CVE-2025-29811

Windows - Mobile Broadband

Microsoft CVSS 7.8 Updated March 12, 2026

Executive Risk Summary

"An improper input validation vulnerability in Windows Mobile Broadband allows an authorized attacker to elevate privileges locally, potentially leading to unauthorized access and control. This vulnerability poses a significant risk to Windows systems, especially those with mobile broadband capabilities, as it could be exploited to gain elevated privileges."

Operational Audit Arsenal

Target Type DLL
Target Asset mbbservice.dll
Standard Path %windir%\System32
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: mbbservice.dll (DLL)
$Targets = 'mbbservice.dll'
$SearchPaths = @("$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

Network services may be affected

Internal Work Notes

CVE-2025-29811: Windows Mobile Broadband vulnerability allowing local privilege escalation; patching required to prevent potential security breaches.

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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.