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Improper Privilege ManagementWeakness · CWE-269

CVE-2024-31756

HIGH · 7.8 CVSS v3.1 Published 2024-05-21
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An issue in MarvinTest Solutions Hardware Access Driver v.5.0.3.0 and before and fixed in v.5.0.4.0 allows a local attacker to escalate privileges via the Hw65.sys component.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A local privilege escalation vulnerability exists in the Hw65.sys kernel driver component of MarvinTest Solutions Hardware Access Driver v5.0.3.0 and prior. The vulnerability allows a local attacker to gain elevated (likely SYSTEM) privileges by exploiting improper access controls or input validation in the kernel-mode driver.

MitigationUpgrade MarvinTest Solutions Hardware Access Driver to v5.0.4.0 or later to obtain the patched Hw65.sys driver.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Locate MarvinTest Solutions Hardware Access Driver installation
    Check common installation directories such as C:\Program Files\MarvinTest or C:\Program Files (x86)\MarvinTest, or use the Windows Add/Remove Programs feature to find the installed application.
    Affected if The driver software is not found on the system, then the system is not affected.
  2. Identify installed driver version
    Locate the Hw65.sys file in the driver installation directory (commonly in a bin or driver subfolder) and right-click to view Properties, then check the File Version tab. Alternatively, open an elevated command prompt and run: dir "C:\Program Files\MarvinTest\*" /s /b to find the driver file.
    Affected if The file version displayed is 5.0.3.0 or earlier, indicating the system falls within the affected version range.
  3. Check if Hw65.sys driver is loaded
    Open an elevated command prompt and run: sc query hw65sys or check the Windows Device Manager under System devices for a driver named Hardware Access Driver or Hw65.
    Affected if The driver is found to be running or loaded on the system.
  4. Confirm kernel driver file presence and version programmatically
    Open PowerShell as an administrator and run: Get-ChildItem -Path "C:\Program Files","C:\Program Files (x86)" -Recurse -Filter "Hw65.sys" -ErrorAction SilentlyContinue | Select-Object FullName, VersionInfo
    Affected if The Hw65.sys file is found with a version property showing 5.0.3.0 or lower.

The system is affected if MarvinTest Solutions Hardware Access Driver is installed with version 5.0.3.0 or earlier, as indicated by the Hw65.sys driver file version.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade MarvinTest Solutions Hardware Access Driver to v5.0.4.0 or later to obtain the patched Hw65.sys driver.

Recommended fix High confidence

v5.0.4.0

  1. Identify the current version of MarvinTest Solutions Hardware Access Driver installed on the system
  2. Obtain the fixed version (v5.0.4.0 or later) from the vendor or official distribution channel
  3. Stop any applications or services that are currently using the Hw65.sys driver
  4. Uninstall the current version of the MarvinTest Hardware Access Driver
  5. Install version 5.0.4.0 or later of the MarvinTest Hardware Access Driver
  6. Restart the system or reload the driver to ensure the new version is active
  7. Verify the installed version is 5.0.4.0 or later to confirm the remediation

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation2.0 h
  • Testing6.0 h
  • Review / QA3.0 h
14.0 hours of engineering $2,400
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-31756 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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  • No spam, self-promotion, credentials, or personal data