CVE-2026-3508

Vulnerability

Overview

An Out-of-bounds Read vulnerability exists in the IOCTL handler of the ASUS System Control Interface. The flaw occurs when a read size that exceeds the allocated buffer size is not properly validated, allowing a local user to trigger a system crash (Blue Screen of Death, BSOD) [1].

Exploitation

To exploit this flaw, an attacker must have local access to the system and be able to send crafted IOCTL requests to the vulnerable driver. No special privileges beyond local user access are required, as the IOCTL handler is reachable from user mode. The attack does not require user interaction beyond the initial execution of the exploit code.

Impact

Successful exploitation results in a denial-of-service condition, causing the Windows operating system to crash with a BSOD. This can lead to data loss or disruption of service. There is no indication of privilege escalation or remote code execution from the available information.

Mitigation

ASUS has released a security update for MyASUS to address this issue. Users are advised to apply the latest updates as detailed in the ASUS Security Advisory [1]. No workarounds are documented; the recommended action is to mitigate the vulnerability is to install the provided patch.