CVE-2024-36056

SYSTEM privilege escalation via physical-memory mapping

Published May 26, 2024 · Updated Feb 13, 2025

Improper privilege management in Marvin Test Solutions Hardware Access Driver before 5.0.5.0 allows local users to gain SYSTEM privileges. Hw64.sys accepts IOCTL 0x9c406490 from unprivileged processes and maps attacker-selected physical memory through MDL allocation and locked-page mapping routines. Local code execution is required, after which arbitrary physical-memory access crosses the user-to-kernel privilege boundary.

CVSS severity5.4
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper privilege management in Marvin Test Solutions Hardware Access Driver before 5.0.5.0 allows local users to gain SYSTEM privileges. Hw64.sys accepts IOCTL 0x9c406490 from unprivileged processes and maps attacker-selected physical memory through MDL allocation and locked-page mapping routines. Local code execution is required, after which arbitrary physical-memory access crosses the user-to-kernel privilege boundary.

The record

CVE
CVE-2024-36056
Published
May 26, 2024
Updated
Feb 13, 2025
Vendor
Marvin Test Solutions
Product
Hardware Access Driver (HW)
Classifications
CWE-269, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0 <=5.0.4.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Marvin Test Solutions · Hardware Access Driver (HW)version=1.0 <=5.0.4.0

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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