SARA / Free Tools / CVE / CVE-2025-24990

CVE-2025-24990 — Microsoft Windows Untrusted Pointer Dereference Vulnerability

CVSS

7.8 HIGH

EPSS

3.90% (top 11.90%)

CWE

CWE-822

Published

2025-10-14T17:00:10.973Z

Last modified

2026-02-26T17:47:29.261Z

CVSS vector

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

CISA KEV — Actively Exploited

Added to KEV

2025-10-14

BOD 22-01 due

2025-11-04

Ransomware use

Unknown

View KEV detail

CVE-2025-24990 on CISA KEV →

01What is this vulnerability?

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…

02Affected products

Vendor	Product	Versions
Microsoft	Windows 10 Version 1507	10.0.10240.0
Microsoft	Windows 10 Version 1607	10.0.14393.0
Microsoft	Windows 10 Version 1809	10.0.17763.0
Microsoft	Windows 10 Version 21H2	10.0.19044.0
Microsoft	Windows 10 Version 22H2	10.0.19045.0
Microsoft	Windows 11 version 22H2	10.0.22621.0
Microsoft	Windows 11 Version 23H2	10.0.22631.0
Microsoft	Windows 11 Version 24H2	10.0.26100.0
Microsoft	Windows 11 Version 25H2	10.0.26200.0
Microsoft	Windows Server 2008 R2 Service Pack 1	6.1.7601.0
Microsoft	Windows Server 2008 R2 Service Pack 1 (Server Core installation)	6.1.7601.0
Microsoft	Windows Server 2008 Service Pack 2	6.0.6003.0
Microsoft	Windows Server 2008 Service Pack 2 (Server Core installation)	6.0.6003.0
Microsoft	Windows Server 2012	6.2.9200.0
Microsoft	Windows Server 2012 (Server Core installation)	6.2.9200.0
Microsoft	Windows Server 2012 R2	6.3.9600.0
Microsoft	Windows Server 2012 R2 (Server Core installation)	6.3.9600.0
Microsoft	Windows Server 2016	10.0.14393.0
Microsoft	Windows Server 2016 (Server Core installation)	10.0.14393.0
Microsoft	Windows Server 2019	10.0.17763.0
Microsoft	Windows Server 2019 (Server Core installation)	10.0.17763.0
Microsoft	Windows Server 2022	10.0.20348.0
Microsoft	Windows Server 2022, 23H2 Edition (Server Core installation)	10.0.25398.0
Microsoft	Windows Server 2025	10.0.26100.0
Microsoft	Windows Server 2025 (Server Core installation)	10.0.26100.0

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2025-10-14. Ransomware use: Unknown.

04Recommended remediation

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

Published: 2025-10-14T17:00:10.973Z
Last modified: 2026-02-26T17:47:29.261Z
Added to CISA KEV: 2025-10-14
BOD 22-01 due: 2025-11-04

09References

msrc.microsoft.com — https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24990

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