CVE-2025-50892: eudskacs.sys Privilege Escalation

Description

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.

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CVSS v3.1 Score

7.8

HIGH

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

Weakness Type (CWE)

CWE-269 CWE-269

Affected Products

Vendor	Product	Versions
easeus	eudskacs.sys_driver	All

References

Other References

http://easeus.com https://gist.github.com/christopher-ellis-workday/756c998f9f59dd2c437d83e60c7ed220

Frequently Asked Questions

What is CVE-2025-50892? +

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. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-50892? +

CVE-2025-50892 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-50892? +

CVE-2025-50892 affects products from easeus, specifically: eudskacs.sys_driver. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-50892? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-50892