Executive Risk Summary
"A vulnerability in the Agere Modem driver, which ships natively with supported Windows operating systems, has been identified. The driver has been removed in the October cumulative update, and fax modem hardware dependent on this driver will no longer work on Windows."
Operational Audit Arsenal
Target Type Driver
Target Asset ltmdm64.sys
Standard Path %windir%System32drivers
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: ltmdm64.sys (Driver)
$Targets = 'ltmdm64.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
Fax modem hardware functionality
Internal Work Notes
Remove dependencies on Agere Modem hardware due to driver removal, resulting in loss of fax modem functionality
Technical Intelligence & Operational Utilities • Delivered Weekly
Intelligence Sources
MSRC Advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24990
Official Advisoryhttps://www.vicarius.io/vsociety/posts/cve-2025-24990-detection-script-elevation-of-privilege-vulnerability-in-agere-modem-driver-affecting-windows
Official Advisoryhttps://www.vicarius.io/vsociety/posts/cve-2025-24990-mitigation-script-elevation-of-privilege-vulnerability-in-agere-modem-driver-affecting-windows
Official Advisoryhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24990
Related Microsoft Threats
Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.