Microsoft Windows up to Server 2025 Agere Modem Driver untrusted pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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7.5$5k-$25k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows. It has been classified as critical. This affects an unknown part of the component Agere Modem Driver. The manipulation leads to untrusted pointer dereference. This vulnerability is traded as CVE-2025-24990. An attack has to be approached locally. Furthermore, there is an exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows. It has been rated as critical. This issue affects an unknown code block of the component Agere Modem Driver. The manipulation with an unknown input leads to a untrusted pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-822. The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was shared 10/14/2025 as confirmed security update guide (Website). It is possible to read the advisory at msrc.microsoft.com. The identification of this vulnerability is CVE-2025-24990. The exploitation is known to be easy. Attacking locally is a requirement. Technical details are unknown but an exploit is available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 10/28/2025).

It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 10/14/2025 with a due date of 11/04/2025:

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

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Zero-Day.cz (1040), EUVD (EUVD-2025-34257) and CERT Bund (WID-SEC-2025-2307). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Microsoft Windows 11
  • Microsoft Windows Server
  • Microsoft Windows Server 2016
  • Microsoft Windows 10
  • Microsoft Windows Server 2019
  • Microsoft Windows
  • Microsoft Windows Server 2022
  • Microsoft Windows Server 2012
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2025

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 7.8
Vendor Vector (Microsoft): 🔒

CNA Base Score: 7.8
CNA Vector (Microsoft): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Untrusted pointer dereference
CWE: CWE-822
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Attacked

EPSS Score: 🔒
EPSS Percentile: 🔒

KEV Added: 🔒
KEV Due: 🔒
KEV Remediation: 🔒
KEV Ransomware: 🔒
KEV Notice: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Zero-Day.cz: 🔒

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒

Timelineinfo

10/14/2025 VulDB entry created
10/14/2025 +0 days Advisory disclosed
10/14/2025 +0 days Countermeasure disclosed
10/28/2025 +13 days VulDB entry last update

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: msrc.microsoft.com
Status: Confirmed

CVE: CVE-2025-24990 (🔒)
GCVE (CVE): GCVE-0-2025-24990
GCVE (VulDB): GCVE-100-328319
EUVD: 🔒
CERT Bund: WID-SEC-2025-2307 - Microsoft Windows: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20161215

Entryinfo

Created: 10/14/2025 19:06
Updated: 10/28/2025 02:55
Changes: 10/14/2025 19:06 (35), 10/14/2025 19:09 (34), 10/14/2025 23:00 (16), 10/15/2025 08:33 (1), 10/15/2025 09:48 (11), 10/16/2025 03:32 (2), 10/16/2025 09:33 (7), 10/27/2025 08:57 (1), 10/28/2025 02:55 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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