Stack Buffer Overflow in AsIO3.sys Driver by ASUS

CVE-2025-1533

What is CVE-2025-1533?

CVE-2025-1533 is a vulnerability found within the AsIO3.sys driver developed by Asus, designed to facilitate communication between hardware components attached to a computer and the operating system. This driver plays a crucial role in ensuring the proper functioning of various devices, providing necessary support for peripheral management. The vulnerability manifests as a stack buffer overflow, which occurs when more data is written to a buffer than it can accommodate, leading to potential overwriting of adjacent memory. This condition can be triggered through carefully crafted input, resulting in system instability marked by crashes (Blue Screen of Death, or BSOD) or executing unknown code. Such outcomes can severely disrupt organizational operations, especially if the affected systems are integral to day-to-day tasks or critical processes.

Potential Impact of CVE-2025-1533

1. System Crashes: The vulnerability can lead to unexpected system crashes, resulting in disruption of services and potential data loss. This can have significant ramifications for organizations that rely on consistent system availability, impacting productivity and operational efficiency.

2. Data Corruption: Exploiting this vulnerability may cause data corruption during the overflow incident, where essential files and databases could be compromised or lost, affecting business continuity and data integrity.

3. Unauthorized Code Execution: Should an attacker successfully exploit the vulnerability, there is a risk of executing arbitrary code, which could lead to unauthorized access to sensitive data or further compromise of the affected systems, escalating the attack's impact within the organization.

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