Untrusted pointer dereference in Microsoft Windows and Windows Server - CVE-2025-24990
Published: October 14, 2025 / Updated: October 31, 2025
Vulnerability identifier: #VU117007
CSH Severity: High
CVSS v4: 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]
CVE-ID: CVE-2025-24990
CWE-ID: CWE-822
Exploitation vector: Local access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
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.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2025-24990
Install updates from vendor's website.
Microsoft Windows - addressed in versions 10 21H2 10.0.19044.6456, 10 22H2 10.0.19045.6456, 10 1507 10.0.10240.21161, 10 1607 10.0.14393.8519, 10 1809 10.0.17763.7919, 11 22H2 10.0.22621.6060, 11 23H2 10.0.22631.6060, 11 24H2 10.0.26100.6899
Windows Server - addressed in versions 2008 R2 6.1.7601.27974, 2008 6.0.6003.23571, 2012 R2 6.3.9600.22824, 2012 6.2.9200.25722, 2016 10.0.14393.8519, 2019 10.0.17763.7919, 2022 23H2 10.0.25398.1913, 2022 10.0.20348.4294, 2025 10.0.26100.6899
Windows Server - addressed in versions 2008 R2 6.1.7601.27974, 2008 6.0.6003.23571, 2012 R2 6.3.9600.22824, 2012 6.2.9200.25722, 2016 10.0.14393.8519, 2019 10.0.17763.7919, 2022 23H2 10.0.25398.1913, 2022 10.0.20348.4294, 2025 10.0.26100.6899