CVE-2026-47584 in GPU Display Driver
Summary
by MITRE • 09/30/2026
NVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel module where an attacker with local access could cause a NULL pointer dereference. A successful exploit of this vulnerability might lead to denial of service.
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Analysis
by VulDB Data Team • 09/30/2026
The identified security flaw resides within the NVIDIA Graphics Processing Unit display driver for Microsoft Windows, specifically affecting its kernel-mode components. This architectural placement is significant because kernel modules operate with high privileges and direct access to system memory, making any instability in this layer potentially catastrophic for overall system stability. The vulnerability manifests as a NULL pointer dereference, which occurs when the software attempts to read from or write to a memory address of zero instead of a valid location. This type of error typically arises due to insufficient validation checks before accessing pointers that may not have been properly initialized or allocated by the operating system's memory manager.
From an attacker perspective, this vulnerability requires local access privileges on the target machine. An adversary who has already gained foothold within the user space can craft specific inputs or trigger particular code paths within the display driver to induce the NULL pointer dereference condition. Because the flaw exists in kernel mode, it bypasses many of the standard isolation mechanisms that protect user applications from each other and from the core operating system functions. The exploitation does not necessarily require complex privilege escalation techniques initially but relies on precise timing or state manipulation to force the driver into an invalid memory access scenario.
The operational impact of a successful exploit is primarily focused on service availability rather than data confidentiality or integrity in this specific instance. When the kernel encounters a NULL pointer dereference, it typically triggers a critical error known as a bug check or blue screen of death on Windows systems. This results in an immediate and uncontrolled system crash, leading to a denial of service condition for all users and processes running on the affected machine. While some modern operating systems may attempt to isolate such faults, kernel-level crashes often necessitate a full reboot, disrupting ongoing workloads and potentially causing data loss if unsaved operations are interrupted abruptly.
This vulnerability aligns with Common Weakness Enumeration category CWE-476, which specifically defines NULL Pointer Dereference as the use of an pointer that evaluates to null in contexts where it is not expected to be so. In terms of adversarial tactics, this behavior corresponds to techniques found within the MITRE ATT&CK framework related to system availability impacts and potentially resource exhaustion through crash induction. Although primarily a denial-of-service vector, such kernel flaws can sometimes serve as precursors for more sophisticated attacks if combined with other vulnerabilities or race conditions that allow control over execution flow after the fault is triggered.
Mitigation strategies should prioritize immediate patching of the NVIDIA GPU display driver to the latest stable version provided by the vendor, which includes code fixes addressing the missing validation checks in the kernel module. System administrators should enforce strict update policies for graphics drivers on workstations and servers where stability is critical. Additionally, implementing application whitelisting or restricting local user privileges can reduce the attack surface available to potential adversaries attempting to trigger this flaw. Monitoring system logs for frequent driver-related crashes may also serve as an early warning indicator of exploitation attempts in environments where patching cannot be applied instantly.