Untrusted Pointer Dereference in Windows Kernel Memory from Microsoft

CVE-2025-29812

What is CVE-2025-29812?

CVE-2025-29812 is a vulnerability found in the Microsoft Windows Kernel, which is a core component of the Windows operating system responsible for managing system resources and facilitating communication between hardware and software. This particular vulnerability allows an authorized user to dereference an untrusted pointer in kernel memory, which can lead to privilege escalation. In the hands of an attacker, this flaw could potentially allow them to gain elevated privileges on a system, leading to unauthorized access to sensitive information, control over system functions, and the ability to execute malicious actions at a higher level within the operating system.

Technical Details

The vulnerability involves an untrusted pointer dereference issue that occurs within the Windows Kernel memory. In technical terms, it signifies that an attacker with local access could manipulate the kernel's handling of pointers, which are crucial for referencing memory locations. If exploited, this could allow an attacker to access system resources or perform actions that they would not normally have permission to undertake. The vulnerability can impact system integrity and availability if an attacker uses it to take control of a system or escalate their permissions inappropriately.

Potential impact of CVE-2025-29812

1. Privilege Escalation: The primary impact of this vulnerability is the potential for unauthorized privilege escalation, allowing an attacker with local access to gain higher-level permissions. This capability could enable them to execute sensitive operations and manipulate critical system functions.

2. System Compromise: Successfully exploiting this vulnerability could lead to a complete compromise of the affected system. An attacker could leverage elevated privileges to install malware, extract sensitive data, or create backdoors for future access.

3. Data Breach Risks: With elevated privileges, an attacker could access protected resources and sensitive information stored on the system, increasing the likelihood of data breaches that could expose personal, financial, or proprietary data crucial to the organization’s operations and reputation.

References