CVE-2025-67246Public exploit

Local physical-memory disclosure via unchecked IOCTL address

Published Jan 15, 2026 · Updated Jan 15, 2026

Information disclosure in the Ludashi driver before 5.1025 allows local users to read arbitrary physical memory through an IOCTL request. The ComputerZ_x64.sys handler for IOCTL 0xF1002508 maps a caller-supplied lower-4GB physical address with MmMapIoSpace and returns the bytes without checking privileges or the target range. A local low-privileged account that can open the ComputerZ device is sufficient; disclosure of kernel data and pointers enables KASLR bypass and further privilege escalation.

CVSS severity7.3
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in the Ludashi driver before 5.1025 allows local users to read arbitrary physical memory through an IOCTL request. The ComputerZ_x64.sys handler for IOCTL 0xF1002508 maps a caller-supplied lower-4GB physical address with MmMapIoSpace and returns the bytes without checking privileges or the target range. A local low-privileged account that can open the ComputerZ device is sufficient; disclosure of kernel data and pointers enables KASLR bypass and further privilege escalation.

The record

CVE
CVE-2025-67246
Published
Jan 15, 2026
Updated
Jan 15, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-732, CWE-269, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 15, 2026Record 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

7.3CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

Public exploit references

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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