V Server FirmwareOperating system · Fujielectric

CVE-2018-14815

CRITICAL · 9.8 CVSS v3.0 Published 2018-09-26
Fix available
A fix is available. Upgrade to after 4.0.3.0 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges 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
Fuji Electric V-Server 4.0.3.0 and prior, Several out-of-bounds write vulnerabilities have been identified, which may allow remote code execution.

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 confidence

Multiple out-of-bounds write vulnerabilities in Fuji Electric V-Server versions 4.0.3.0 and prior allow remote attackers to execute arbitrary code by triggering the memory corruption through specially crafted network requests.

MitigationIsolate affected systems on restricted network segments, minimize exposure to untrusted networks, apply vendor patches when available, and implement compensating controls such as intrusion detection to monitor for exploitation attempts.

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
V Server FirmwareOperating system
Affected:<= 4.0.3.0

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
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/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 checks

Work through these to decide whether this CVE applies to you.

  1. Confirm V-Server installation
    Identify whether Fuji Electric V-Server software is installed on the target system by checking installed programs, program directories, or system inventory
    Affected if Fuji Electric V-Server is found installed on the system
  2. Determine installed V-Server version
    Locate and retrieve the version information for the installed V-Server instance - typically found in program files, about dialogs, or system information utilities
    Affected if The installed version cannot be determined or is 4.0.3.0 or prior
  3. Compare version against affected range
    Compare the identified version number to the affected range: all versions <= 4.0.3.0 are vulnerable
    Affected if The installed version is 4.0.3.0 or any prior version (e.g., 4.0.2.0, 4.0.1.0, etc.)
  4. Assess network exposure
    Determine if the V-Server service is running and accessible over the network - check if ports or services are listening on external interfaces
    Affected if The V-Server service is running and exposed to untrusted network segments

The system is affected if Fuji Electric V-Server is installed with version 4.0.3.0 or any earlier version, particularly if the service is network-accessible.

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
Upgrade available Upgrade to a release after 4.0.3.0
Interim mitigation

Isolate affected systems on restricted network segments, minimize exposure to untrusted networks, apply vendor patches when available, and implement compensating controls such as intrusion detection to monitor for exploitation attempts.

Fix this in V Server Firmware Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing12.0 h
  • Review / QA8.0 h
44.0 hours of engineering $7,720
Get the upgrade done

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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2018-14815 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2018-14815 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
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data