SB2025101458 - Privilege escalation in Microsoft Windows Agere Modem driver

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Main Vulnerability Database SB2025101458

SB2025101458 - Privilege escalation in Microsoft Windows Agere Modem driver

Published: October 14, 2025 Updated: October 31, 2025

Security Bulletin ID SB2025101458
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Untrusted pointer dereference (CVE-ID: CVE-2025-24990) Exploited

CWE-ID: CWE-822 - Untrusted Pointer Dereference

CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


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.

References