CVE-2025-50892

Arbitrary raw disk access via unchecked driver I/O

Published Sep 10, 2025 · Updated Sep 10, 2025

Improper privilege validation in EaseUS Todo Backup 1.2.0.1 allows local users to read and write arbitrary raw disk sectors. The eudskacs.sys 20250328 device object accepts IRP_MJ_READ and IRP_MJ_WRITE requests without enforcing the caller privileges required for raw disk I/O. Exploitation requires the driver to be installed and low-privileged local access, enabling sensitive file reads, disk corruption or a system crash, and local privilege escalation.

CVSS severity7.8
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper privilege validation in EaseUS Todo Backup 1.2.0.1 allows local users to read and write arbitrary raw disk sectors. The eudskacs.sys 20250328 device object accepts IRP_MJ_READ and IRP_MJ_WRITE requests without enforcing the caller privileges required for raw disk I/O. Exploitation requires the driver to be installed and low-privileged local access, enabling sensitive file reads, disk corruption or a system crash, and local privilege escalation.

The record

CVE
CVE-2025-50892
Published
Sep 10, 2025
Updated
Sep 10, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-269, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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