CVE-2023-51776
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 · uneditedImproper privilege management in Jungo WinDriver before 12.1.0 allows local attackers to escalate privileges and execute arbitrary code.
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 · moderate confidenceImproper privilege management in Jungo WinDriver before version 12.1.0 allows local attackers to escalate privileges and execute arbitrary code due to insufficient access control mechanisms in the driver software.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 12.1.0all versionsall versionsall versionsall versionsall versionsall versionsall versionsCVSS 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 checksWork through these to decide whether this CVE applies to you.
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Locate Jungo WinDriver driver filesSearch for windrvr*.sys files in system directories: C:\Windows\System32\drivers\ and C:\Windows\SysWOW64\drivers\Affected if windrvr*.sys files exist on the system
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Check WinDriver driver versionRight-click the windrvr*.sys file, select Properties, then view the Details tab for Product Version or File VersionAffected if The displayed version is lower than 12.1.0 or the version field is empty/unavailable
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Identify installed Mitsubishi tools that bundle WinDriverOpen Programs and Features (appwiz.cpl) and search for: CPU Module Logging Configuration Tool, CW Configurator, Data Transfer, Data Transfer Classic, Ezsocket, FR Configurator Sw3, FR Configurator2Affected if Any of these Mitsubishi applications are installed (they bundle vulnerable WinDriver)
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Check for running WinDriver serviceOpen Services (services.msc) and look for a service named 'WinDriver' or similar driver-related service; or run 'sc query windrvr' in Command PromptAffected if The WinDriver service is present and running
The system is affected if WinDriver version is detected and is below 12.1.0, or if any of the listed Mitsubishi Electric products are installed (they bundle the vulnerable driver in all versions).
Generated from the published advisory. Verify against your own configuration.
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 · scoped12.1.0
Upgrade to Jungo WinDriver version 12.1.0 or later which addresses the improper privilege management vulnerability.
WinDriver 12.1.0 or later
- Identify all systems and products using Jungo WinDriver (including Wind River and listed Mitsubishi Electric tools)
- Check current WinDriver version on affected systems
- Obtain WinDriver version 12.1.0 or later from the official Jungo website or vendor
- Upgrade WinDriver to version 12.1.0 or newer on all affected systems
- Verify the upgrade was successful by checking the new version number
- Restart any services or systems that rely on WinDriver to ensure the patched version is loaded
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,096.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-51776 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2023-51776 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data