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Improper Privilege ManagementWeakness · CWE-269

CVE-2024-33226

CRITICAL · 9.9 CVSS v3.1 Published 2024-05-22
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable 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 the component Access64.sys of Wistron Corporation TBT Force Power Control v1.0.0.0 allows attackers to escalate privileges and execute arbitrary code via sending crafted IOCTL requests.

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 privilege escalation vulnerability exists in the Wistron Access64.sys kernel driver (TBT Force Power Control v1.0.0.0). The driver fails to properly validate or authorize IOCTL (I/O Control) requests, allowing unprivileged attackers to send crafted requests that result in arbitrary code execution with elevated SYSTEM privileges.

MitigationApply vendor-provided patch or update to TBT Force Power Control; if unavailable, disable or remove the Access64.sys driver until a fix is released.

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
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
Low

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

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 the Access64.sys driver file
    Search for Access64.sys in the Windows\System32\drivers directory and any TBT Force Power Control installation folders
    Affected if The driver file exists on the system
  2. Verify driver is loaded
    Run 'sc query Access64' or 'driverquery /v | findstr Access64' from an elevated command prompt to check if the driver service is running
    Affected if The driver service state shows as RUNNING
  3. Check driver file version
    Right-click the Access64.sys file, select Properties, and view the File Version field under the Details tab
    Affected if File version is 1.0.0.0 or matches the vulnerable version of TBT Force Power Control
  4. Check for TBT Force Power Control software
    Open Programs and Features in Control Panel or run 'wmic product get name,version' and look for TBT Force Power Control
    Affected if TBT Force Power Control version 1.0.0.0 is installed

If Access64.sys is present and the driver or TBT Force Power Control software version is 1.0.0.0, the system is vulnerable to privilege escalation via improper IOCTL request validation.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor-provided patch or update to TBT Force Power Control; if unavailable, disable or remove the Access64.sys driver until a fix is released.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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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-2024-33226 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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