CVE-2025-50892: Easeus Eudskacs.sys Driver

High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days.

The eudskacs.sys driver version 20250328 shipped with EaseUs Todo Backup 1.2.0.1 fails to properly validate privileges for I/O requests (IRP_MJ_READ/IRP_MJ_WRITE) sent to its device object. This allows a local, low-privileged attacker to perform arbitrary raw disk reads and writes, leading to sensitive information disclosure, denial of service, or local privilege escalation.

Affected products

• Easeus Eudskacs.sys Driver: version 20250328 only

Published 2025-09-10. Last modified 2026-07-05.