CVE-2025-61155

5.5 mediumEPSS 0.3%

Medium (5.5). EPSS 0.3% chance of exploitation in the next 30 days.

The GameDriverX64.sys kernel-mode anti-cheat driver (v7.23.4.7 and earlier) contains an access control vulnerability in one of its IOCTL handlers. A user-mode process can open a handle to the driver device and send specially crafted IOCTL requests. These requests are executed in kernel-mode context without proper authentication or access validation, allowing the attacker to terminate arbitrary processes, including critical system and security services, without requiring administrative privileges.

Severity

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-31)
CWE: CWE-400
Published: 2025-10-28
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://github.com/pollotherunner/CVE-2025-61155/blob/main/advisory.md
https://www.hotta.com.tw

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