CVE-2016-4528
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 · uneditedBuffer overflow in Advantech WebAccess before 8.1_20160519 allows local users to cause a denial of service via a crafted DLL file.
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 confidenceBuffer overflow vulnerability in Advantech WebAccess versions prior to 8.1_20160519 allows local authenticated users to cause a denial of service by loading a specially crafted DLL file. The vulnerability is exploitable locally and could potentially be chained with privilege escalation, though the primary impact stated is DoS.
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<= 8.1CVSS 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
- Low
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/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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Confirm Advantech WebAccess installationCheck for the presence of WebAccess installation by looking for the installation directory (commonly in C:\Program Files\Advantech\WebAccess or similar), the WebAccess service in Windows Services, or registry entries under HKEY_LOCAL_MACHINE\SOFTWARE\AdvantechAffected if Advantech WebAccess is not found on the system, this CVE does not apply
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Identify installed WebAccess versionLocate the WebAccess version information - this is typically found in the main executable (such as Browes.exe or similar), in the program's properties via right-click, in the Add/Remove Programs entry, or in version information embedded in the service executableAffected if Unable to determine the version - manual verification may be required
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Compare version to affected rangeCompare the installed version number against the affected range. The vulnerability affects versions prior to 8.1_20160519. Check if the version string contains 8.1 with a build date earlier than 20160519, or any version below 8.1Affected if The installed version is 8.1 or lower, or the version string indicates a build date before May 19, 2016 (20160519)
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Verify local user access scopeReview system access controls to determine whether untrusted local authenticated users have access to the WebAccess installation directory or service configurationAffected if Untrusted local users can write to the WebAccess installation directory or have the ability to place files in locations from which DLLs would be loaded
If Advantech WebAccess is installed and the version is 8.1 or lower (or builds dated before 20160519), the system is vulnerable to this CVE.
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 dataUpgrade Advantech WebAccess to version 8.1_20160519 or later to remediate this vulnerability. Until patched, restrict physical and logical access to the affected system to trusted local users only.
- Consultation2.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-4528 — 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-2016-4528 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
- No spam, self-promotion, credentials, or personal data