CVEvulnerability

CVE-2025-24990

7.8 HIGH Known exploited Published 2025-10-14 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Microsoft Windows Untrusted Pointer Dereference Vulnerability — Microsoft Windows

Microsoft Windows Agere Modem Driver contains an untrusted pointer dereference vulnerability that allows for privilege escalation. An attacker who successfully exploited this vulnerability could gain administrator privileges.

Added to KEV: 2025-10-14
Remediation due: 2025-11-04
Ransomware use: Unknown
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes: https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-24990 ; https://nvd.nist.gov/vuln/detail/CVE-2025-24990

Status: Analyzed
Published: 2025-10-14
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses: CWE-822

Description

Microsoft is aware of vulnerabilities in the third party Agere Modem driver that ships natively with supported Windows operating systems. This is an announcement of the upcoming removal of ltmdm64.sys driver. The driver has been removed in the October cumulative update. Fax modem hardware dependent on this specific driver will no longer work on Windows. Microsoft recommends removing any existing dependencies on this hardware.

Affected configurations

• microsoft windows 10 1507 (< 10.0.10240.21161) • microsoft windows 10 1607 (< 10.0.14393.8519) • microsoft windows 10 1809 (< 10.0.17763.7919) • microsoft windows 10 21h2 (< 10.0.19044.6456) • microsoft windows 10 22h2 (< 10.0.19045.6456) • microsoft windows 11 22h2 (< 10.0.22621.6060) • microsoft windows 11 23h2 (<= 10.0.22631.6060) • microsoft windows 11 24h2 (< 10.0.26100.6899) • microsoft windows 11 25h2 (< 10.0.26200.6899) • microsoft windows server 2008 • microsoft windows server 2008 r2 • microsoft windows server 2012 • microsoft windows server 2012 r2 • microsoft windows server 2016 (<= 10.0.14393.8519) • microsoft windows server 2019 (< 10.0.17763.7919) • microsoft windows server 2022 (< 10.0.20348.4294) • microsoft windows server 2022 23h2 (< 10.0.25398.1913) • microsoft windows server 2025 (<= 10.0.26100.6899)

Weakness · CWE (1)

CWE-822 Untrusted Pointer Dereference weakness

References