Hotta Studio GameDriverX64.sys Denial-of-Service Vulnerability

Vulnerability

A denial-of-service vulnerability has been identified in the Hotta Studio GameDriverX64.sys kernel-mode anti-cheat driver, specifically in version 7.23.4.7 and earlier. The vulnerability allows local attackers to crash arbitrary processes by sending crafted IOCTL requests. This exploitation can terminate critical system processes, including antivirus and core system services, potentially compromising system security. Notably, the vulnerability does not require administrative privileges to exploit.

Impact

Exploitation of this vulnerability leads to a local denial-of-service condition, causing the termination of processes that are vital to system operation and security, such as antivirus programs or essential system services.

Remediation

Users are advised to remove or block the GameDriverX64.sys driver until a patch is available from the vendor.

Added: Oct 28, 2025, 4:16 PM
Updated: Oct 28, 2025, 4:16 PM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
2.5
exploitability
3.3
remediation
0.0
relevance
0.8
threat
0.0
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.