CVE & CISA-KEV Catalog

CVE-2025-24990

HIGHCISA KEVEPSS 93th pctl
7.8
CVSS v3
NVD

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.

How to fix

Remediation Available
Windows 10Windows
Install:KB5066837Microsoft
Windows 10 Version 1607Windows
Install:KB5066836Microsoft
Windows 10 Version 1809Windows
Install:KB5066586Microsoft
Windows 10 Version 21H2Windows
Install:KB5066791Microsoft
Windows 10 Version 22H2Windows
Install:KB5066791Microsoft
Windows 11 Version 22H2Windows
Install:KB5066793Microsoft
Windows 11 Version 23H2Windows
Install:KB5066793Microsoft
Windows 11 Version 24H2Windows
Install:KB5066835Microsoft
Windows 11 Version 25H2Windows
Install:KB5066835Microsoft
Windows Server 2008Windows
Install:KB5066874Microsoft
Install:KB5066877Microsoft
Windows Server 2008 R2Windows
Install:KB5066876Microsoft
Install:KB5066872Microsoft
Windows Server 2012Windows
Install:KB5066875Microsoft
Windows Server 2012 (Server Core installation)Windows
Install:KB5066875Microsoft
Windows Server 2012 R2Windows
Install:KB5066873Microsoft
Windows Server 2012 R2 (Server Core installation)Windows
Install:KB5066873Microsoft
Windows Server 2016Windows
Install:KB5066836Microsoft
Windows Server 2016 (Server Core installation)Windows
Install:KB5066836Microsoft
Windows Server 2019Windows
Install:KB5066586Microsoft
Windows Server 2019 (Server Core installation)Windows
Install:KB5066586Microsoft
Windows Server 2022Windows
Install:KB5066782Microsoft
Windows Server 2022 (Server Core installation)Windows
Install:KB5066782Microsoft
Windows Server 2022, 23H2 Edition (Server Core installation)Windows
Install:KB5066780Microsoft
Windows Server 2025Windows
Install:KB5066835Microsoft
Windows Server 2025 (Server Core installation)Windows
Install:KB5066835Microsoft

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

Exploit Intelligence

6.00%probability of exploitation in 30 days
93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Microsoft Windows Untrusted Pointer Dereference Vulnerability

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.

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Remediation due: 2025-11-04

References

Vendor Advisory1
Mitigation1
Third-Party Advisory1
Government Resource1

Related Vulnerabilities

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CVE-2023-36033High7.812%KEVFix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-18.