CVE-2025-24990

7.8

HIGH CVSS 3.1

Microsoft Windows Untrusted Pointer Dereference Vulnerability - [Actively Exploited]

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.

INFO

Published Date :

Oct. 14, 2025, 5:15 p.m.

Last Modified :

Nov. 18, 2025, 5:03 p.m.

Remotely Exploit :

No

Source :

[email protected]

CISA Notification

CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Due Date: Nov 04, 2025

Alert Date: Oct 14, 2025 | 42 days ago

Description :

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.

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

Affected Products

The following products are affected by CVE-2025-24990 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID	Vendor	Product
1	Microsoft	windows_server_2008
2	Microsoft	windows_server_2012
3	Microsoft	windows_server_2016
4	Microsoft	windows_server_2019
5	Microsoft	windows_10_1607
6	Microsoft	windows_10_1809
7	Microsoft	windows_10_21h2
8	Microsoft	windows_10_22h2
9	Microsoft	windows_server_2022
10	Microsoft	windows_11_22h2
11	Microsoft	windows_10_1507
12	Microsoft	windows_11_23h2
13	Microsoft	windows_server_2022_23h2
14	Microsoft	windows_server_23h2
15	Microsoft	windows_server_2012_r2
16	Microsoft	windows_server_2008_r2
17	Microsoft	windows_server_2008_sp2
18	Microsoft	windows_11_24h2
19	Microsoft	windows_server_2025
20	Microsoft	windows_11_25h2
21	Microsoft	windows_11_2h2

: Total Affected Vendor : 1 | Products : 21

CVSS Scores

The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.

Score	Version	Severity	Vector	Exploitability Score	Impact Score	Source
	CVSS 3.1	HIGH				f38d906d-7342-40ea-92c1-6c4a2c6478c8
	CVSS 3.1	HIGH				[email protected]

Solution

Apply the relevant Windows cumulative updates to remove the vulnerable modem driver.

Install the latest Windows cumulative updates.
Remove any remaining Agere modem driver dependencies.
Remove the ltmdm64.sys driver.

Public PoC/Exploit Available at Github

CVE-2025-24990 has a 4 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-24990.

URL	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24990	Vendor Advisory
https://www.vicarius.io/vsociety/posts/cve-2025-24990-detection-script-elevation-of-privilege-vulnerability-in-agere-modem-driver-affecting-windows	Third Party Advisory
https://www.vicarius.io/vsociety/posts/cve-2025-24990-mitigation-script-elevation-of-privilege-vulnerability-in-agere-modem-driver-affecting-windows	Mitigation Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24990	US Government Resource

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-24990 is associated with the following CWEs:

CWE-822: Untrusted Pointer Dereference

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-24990 weaknesses.

CAPEC-129: Pointer Manipulation Pointer Manipulation

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Omkumar2003/Attacks

Common cyber attack tools with its prevention

attack cve cybersecurity prevention threat-intelligence

Updated: 1 month ago

1 stars 1 fork 1 watcher

Born at : Oct. 19, 2025, 8:14 a.m. This repo has been linked 2 different CVEs too.

moiz-2x/CVE-2025-24990_POC

Proof of Concept CVE-2025-24990 (Agere Systems's driver)

C C++

Updated: 3 weeks ago

47 stars 11 fork 11 watcher

Born at : Oct. 16, 2025, 4:44 a.m. This repo has been linked 1 different CVEs too.

gmh5225/awesome-game-security

awesome game security [Welcome to PR]

game awesome cheat anticheat windows debug antidebug engine security anti driver kernel hack gamehack system android game-development web3 blockchain ethereum

Python

Updated: 2 days, 19 hours ago

2596 stars 351 fork 351 watcher

Born at : April 4, 2022, 6:07 a.m. This repo has been linked 27 different CVEs too.

nomi-sec/PoC-in-GitHub

📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.

security cve exploit poc vulnerability

Updated: 1 day, 10 hours ago

7392 stars 1218 fork 1218 watcher

Born at : Dec. 8, 2019, 1:03 p.m. This repo has been linked 825 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

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