CVE-2026-16005 in Armoury Crate
Summary
by MITRE • 09/08/2026
Release of Invalid Pointer or Reference in Armoury Crate driver allows a local user to free arbitrary memory via a crafted IOCTL request by bypassing the driver's verification, which can corrupt data structures and cause a system crash (BSOD).Refer to the ' Security Update for Armoury Crate App ' section on the ASUS Security Advisory for more information.
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Analysis
by VulDB Data Team • 09/08/2026
The vulnerability identified in the Asus Armoury Crate driver represents a critical memory management flaw classified under CWE-416, commonly known as Use After Free or Double Free depending on the specific execution path exploited by an attacker. This issue arises from insufficient validation of input parameters within the device control interface (IOCTL) handlers exposed by the kernel-mode driver. Specifically, the driver fails to properly verify pointers and references before attempting to deallocate memory resources associated with them. When a local user submits a crafted IOCTL request containing maliciously constructed data structures or invalid pointer values, the driver bypasses its internal verification logic and proceeds to free arbitrary memory addresses in the kernel space. This behavior indicates a fundamental failure in boundary checking and type safety enforcement within the driver's codebase, allowing an unprivileged process to manipulate low-level system resources that should be strictly controlled by the operating system kernel.
The operational impact of this vulnerability is severe due to its potential for causing system instability and compromising data integrity. By freeing arbitrary memory locations, the attacker can corrupt critical data structures maintained by the Windows kernel or other running processes. This corruption often manifests as a Blue Screen of Death (BSOD), resulting in a denial of service condition where the affected machine becomes unresponsive and requires a reboot to restore functionality. Beyond simple system crashes, such memory corruption can lead to more sophisticated attacks if the freed memory is reallocated for sensitive operations before being overwritten by the attacker's payload. This scenario opens the door for privilege escalation vulnerabilities, although the primary immediate risk described in the advisory centers on stability and availability impacts through arbitrary write primitives or use-after-free conditions that destabilize the kernel environment.
From a threat intelligence perspective, this vulnerability aligns with MITRE ATT&CK techniques related to execution within system processes and potential defense evasion if leveraged alongside other exploits. Local attackers can exploit this flaw without requiring authentication on many systems where user-level access is sufficient to open device handles for IOCTL communication. The presence of such flaws in utility drivers like Armoury Crate highlights the risk associated with third-party software that operates at ring 0, often introducing attack surfaces that are not present in standard Windows components. These drivers frequently handle hardware-specific configurations and RGB lighting controls but may lack rigorous security auditing compared to core OS modules, making them attractive targets for exploitation by local adversaries seeking to disrupt service or probe for further weaknesses.
Mitigation strategies must prioritize immediate patching through the official ASUS Security Update mentioned in the advisory. Administrators should ensure that all instances of Armoury Crate and its associated drivers are updated to versions that address this IOCTL validation flaw. In environments where the software is not strictly necessary, disabling or uninstalling the driver can reduce the attack surface significantly. Additionally, implementing strict application whitelisting policies via Windows Defender Application Control or similar endpoint protection solutions can prevent unauthorized processes from issuing IOCTL requests to vulnerable kernel drivers. Regular auditing of installed third-party drivers and monitoring for unusual system crashes or event log entries related to driver failures are recommended practices to detect potential exploitation attempts early. Maintaining up-to-date security patches remains the most effective defense against such memory corruption vulnerabilities in local device drivers.