SB2025101458 - Privilege escalation in Microsoft Windows Agere Modem driver
Published: October 14, 2025 Updated: October 31, 2025
Security Bulletin ID
SB2025101458
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Untrusted pointer dereference (CVE-ID: CVE-2025-24990)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to untrusted pointer dereference in the third party Agere Modem driver ltmdm64.sys that ships natively with supported Windows operating systems. A local user can pass specially crafted input to the driver and execute arbitrary code on the system with elevated privileges.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install update from vendor's website.