CVE-2024-11799
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 · uneditedFuji Electric Tellus Lite V-Simulator 5 V8 File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Fuji Electric Tellus Lite. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of V8 files in the V-Simulator 5 component. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-24664.
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 Fuji Electric Tellus Lite V-Simulator 5 when parsing V8 files. The flaw results from insufficient validation of user-supplied data length before copying to a fixed-size stack buffer, allowing an attacker to overwrite stack memory and achieve remote code execution in the context of the current process.
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= 4.0.20.0CVSS 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
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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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Verify Tellus Lite V-Simulator is installedCheck the application installation directory or program files for Fuji Electric Tellus Lite V-Simulator. On Windows, check for the executable (typically in C:\Program Files\Fuji Electric\Tellus Lite V-Simulator or similar path). Use 'Get-ItemProperty' on the registry key HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall for installed programs.Affected if The software is installed on the system
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Confirm the installed versionRight-click the Tellus Lite V-Simulator executable, select Properties, and check the File Version on the Details tab. Alternatively, check the version displayed in the application's About or Help menu.Affected if The installed version is exactly 4.0.20.0
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Identify V8 file handling usageReview recent project files or logs to determine if V8 format files have been opened or processed. Check the application's recent files list for .v8 extensions.Affected if The application has been used to open or parse V8 files from any source
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Inspect for untrusted V8 filesSearch the filesystem for .v8 files, particularly in download folders, shared network locations, or email attachments that may have been opened with Tellus Lite.Affected if Untrusted or unknown-origin V8 files exist and may have been opened with the application
A user is affected if Tellus Lite V-Simulator version 4.0.20.0 is installed and V8 files have been opened, since the buffer overflow occurs during V8 file parsing regardless of file source.
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 dataAvoid opening untrusted V8 files from unverified sources. Apply vendor patches when released. Consider network segmentation and least-privilege execution for systems running this software.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-11799 — 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-2024-11799 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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