dbcve.org
WebaccessApplication · Advantech

CVE-2018-17910

HIGH · 7.8 CVSS v3.0 Published 2018-10-29
Fix available
A fix is available. Upgrade to after 8.3.2 or later.
See remediation →
81/100
Remediation priority · High
No privileges

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
WebAccess Versions 8.3.2 and prior. The application fails to properly validate the length of user-supplied data, causing a buffer overflow condition that allows for arbitrary 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

A buffer overflow vulnerability exists in WebAccess versions 8.3.2 and prior where the application fails to properly validate the length of user-supplied data before copying it into a fixed-size buffer. This improper bounds checking allows an attacker to overwrite adjacent memory and achieve arbitrary remote code execution.

MitigationApply the vendor patch for CVE-2018-17910 to upgrade WebAccess beyond version 8.3.2. Until patching is feasible, network-segment the affected system and restrict access to trusted IPs only to reduce the attack surface.

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
WebaccessApplication
Affected:<= 8.3.2

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
Local
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/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 checks

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

  1. Confirm WebAccess installation
    Locate the Advantech WebAccess installation directory or check system for WebAccess components
    Affected if WebAccess software is present on the system
  2. Determine the installed version
    Access version information through the WebAccess dashboard, README files, or installation logs to retrieve the specific version number
    Affected if Unable to retrieve version information
  3. Compare version to affected range
    Match the installed version against the vulnerable range (all versions <= 8.3.2)
    Affected if Installed version is 8.3.2 or any prior version

The system is affected if Advantech WebAccess version 8.3.2 or earlier is installed, as these versions contain the unchecked buffer vulnerability.

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 8.3.2
Interim mitigation

Apply the vendor patch for CVE-2018-17910 to upgrade WebAccess beyond version 8.3.2. Until patching is feasible, network-segment the affected system and restrict access to trusted IPs only to reduce the attack surface.

Fix this in Webaccess Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing12.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,760
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,616.

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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-2018-17910 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