CVE-2026-47508 in GeForce
Summary
by MITRE • 09/30/2026
NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability in the kernel mode layer, where a user could cause an incorrect conversion between numeric types. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering.
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Analysis
by VulDB Data Team • 09/30/2026
The identified vulnerability resides within the kernel-mode components of the NVIDIA GPU Display Driver for both Windows and Linux operating systems. This specific flaw is characterized by an incorrect conversion between numeric types during internal processing operations. In software engineering, type confusion or improper type casting can lead to significant memory safety issues when the system interprets data in a manner inconsistent with its actual structure or size. Because this vulnerability exists within the kernel mode layer of the driver, it operates at the highest level of privilege on the operating system, granting any process that successfully exploits it access to critical system resources and hardware interfaces without standard user-level restrictions.
The technical nature of this flaw suggests a potential integer overflow or underflow scenario, where numeric values are not validated or converted correctly before being used in memory allocation, array indexing, or buffer management operations. Such errors often result in the writing of data beyond allocated boundaries or the reading of sensitive information from unintended memory locations. The presence of this vulnerability allows an attacker to manipulate how the driver handles numerical inputs, potentially leading to arbitrary code execution if the corrupted state can be leveraged to overwrite function pointers or return addresses on the stack. Alternatively, it may cause a denial of service by triggering kernel panics or system crashes through invalid memory access patterns that destabilize the graphics subsystem and subsequently the entire operating environment.
From an operational impact perspective, the consequences of exploiting this vulnerability are severe due to its location in privileged code. A successful exploit could lead to full compromise of the affected machine. Attackers might achieve escalation of privileges by leveraging the kernel-level execution capabilities inherent in driver vulnerabilities to bypass security controls such as User Account Control or SELinux policies. Furthermore, information disclosure is a likely outcome, as improper type conversions can expose sensitive data stored in memory adjacent to the manipulated variables. Data tampering is also possible if the vulnerability allows for unauthorized modification of system states or configuration parameters managed by the GPU driver stack.
This vulnerability aligns with Common Weakness Enumeration (CWE) categories such as CWE-190, Integer Overflow or Wraparound, and CWE-682, Incorrect Calculation. In terms of adversary tactics, it maps to MITRE ATT&CK techniques related to privilege escalation via kernel exploits and potentially initial access if the vulnerability can be triggered through a web-based interface or local application interaction that interacts with the GPU driver. The attack vector is typically classified as Local, requiring an attacker to have some form of execution capability on the target system, although remote exploitation vectors may exist depending on how user input flows into these kernel routines via display protocols or API calls.
Mitigation strategies primarily involve applying vendor-provided patches that correct the type conversion logic and enforce strict bounds checking for all numeric inputs processed by the driver. Organizations should prioritize updating NVIDIA GPU drivers to versions where this issue has been resolved, as unpatched systems remain susceptible to local privilege escalation attacks. Additionally, implementing defense-in-depth measures such as enabling kernel patching protections like Kernel Patch Protection on Windows or using SELinux/AppArmor policies can help mitigate the impact of successful exploits by restricting the actions that compromised processes can perform within the kernel space. Regular auditing of driver updates and monitoring for unusual system behavior indicative of exploitation attempts are also recommended practices to maintain security posture against such low-level vulnerabilities.