CVE-2022-40984
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 · uneditedStack-based buffer overflow in WTViewerE series WTViewerE 761941 from 1.31 to 1.61 and WTViewerEfree from 1.01 to 1.52 allows an attacker to cause the product to crash by processing a long file name.
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 confidenceA stack-based buffer overflow vulnerability exists in WTViewerE (versions 1.31-1.61) and WTViewerEfree (versions 1.01-1.52) where processing a long file name causes a stack buffer to overflow, leading to a crash. The vulnerability stems from inadequate bounds checking when handling file names, likely copying input into a fixed-size stack buffer without validating length.
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>= 1.31, < 1.62>= 1.01, < 1.53CVSS 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
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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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Identify installed productLocate WTViewerE or WTViewerEfree installation on the system - check Program Files directories, or look for the application in the start menu or installed programs listAffected if Either WTViewerE or WTViewerEfree is installed
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Determine the installed versionOpen the application and check its About or Help dialog for the version number, or look for version information in the program's directory or installer recordsAffected if Version cannot be determined for comparison
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Compare version to affected rangesFor WTViewerE: check if version is >= 1.31 and < 1.62. For WTViewerEfree: check if version is >= 1.01 and < 1.53Affected if Installed version falls within the affected ranges (WTViewerE 1.31-1.61 or WTViewerEfree 1.01-1.52)
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Verify vulnerable feature usageConfirm the application is used to open, view, or process files with file names - the vulnerability triggers when the application handles file names during normal operationAffected if The application processes file names and the version is within the affected ranges
A user is affected if WTViewerE version 1.31-1.61 or WTViewerEfree version 1.01-1.52 is installed and the application is used to process files with file names.
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 · scoped1.531.62
Update to the latest version of WTViewerE/WTViewerEfree which should contain proper bounds checking for file name handling. If updates are unavailable, implement input validation to restrict file name lengths before processing.
WTViewerE 761941 to version >= 1.62; WTViewerEfree to version >= 1.53
- 1. Identify the currently installed WTViewerE version (WTViewerE 761941 or WTViewerEfree)
- 2. Navigate to the official Yokogawa download center (cdn.aff.yokogawa.com) or JVN reference (jvn.jp) to obtain the fixed version
- 3. For WTViewerE 761941: Upgrade to version 1.62 or later
- 4. For WTViewerEfree: Upgrade to version 1.53 or later
- 5. Verify the upgrade was successful by checking the installed version number
- 6. Restart the application if required
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation12.0 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 $7,040.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-40984 — 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-2022-40984 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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- Version or environment caveats, and links to real fixes
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