CVE-2022-29827
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 · uneditedUse of Hard-coded Cryptographic Key vulnerability in Mitsubishi Electric GX Works3 versions from 1.000A and later allows a remote unauthenticated attacker to disclose sensitive information. As a result, unauthenticated attackers may view programs and project files or execute programs illegally.
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 confidenceGX Works3 uses a hardcoded cryptographic key to encrypt sensitive data including project files and program data. An unauthenticated remote attacker can exploit this key to decrypt and access protected information, allowing them to view programs, project files, or execute programs without authorization.
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>= 1.000a, <= 1.011m>= 1.015r, <= 1.086q>= 1.087rCVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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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Identify installed GX Works3 versionOpen GX Works3 and navigate to Help > Product Information, or check the program's properties in Windows Explorer for the version detailsAffected if The version number falls within ranges >= 1.000a to <= 1.011m, >= 1.015r to <= 1.086q, or >= 1.087r
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Locate GX Works3 project filesSearch the file system for .gx3 project files, typically stored in user documents or project directoriesAffected if Encrypted project files exist on the system and could be decrypted by an attacker with the hardcoded key
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Check network exposure of GX Works3 hostReview firewall rules and network configuration to determine if the system running GX Works3 is accessible from untrusted networksAffected if The host is directly accessible from untrusted networks, allowing remote attackers to reach the vulnerable configuration
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Verify project file encryption statusOpen a .gx3 file in GX Works3 and check if it is protected with encryption (indicated in file properties or project settings)Affected if Project files are encrypted using the built-in GX Works3 encryption feature which relies on the hardcoded key
The environment is affected if GX Works3 version is within the listed vulnerable ranges AND encrypted project files or network-accessible instances exist.
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.
From vendor dataApply vendor patches when available. In the interim, restrict network exposure of systems running GX Works3 and implement network segmentation to limit attack surface.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-29827 — 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-2022-29827 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
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