CVE-2014-0989
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 Advantech WebAccess (formerly BroadWin WebAccess) 7.2 allows remote attackers to execute arbitrary code via the AccessCode2 parameter.
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 confidenceStack-based buffer overflow in Advantech WebAccess 7.2 allows remote attackers to execute arbitrary code via overflowing a buffer through the AccessCode2 parameter. This is a classic stack-based buffer overflow enabling remote code execution with CVSS 6.8 (MEDIUM).
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= 7.2CVSS 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
- M
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:M/Au:N/C:P/I:P/A:P
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 if Advantech WebAccess is installedCheck for WebAccess installation directories (commonly C:\Advantech\WebAccess or C:\Program Files\Advantech\WebAccess) or look for the WebAccess service in Windows Services (named 'Advantech WebAccess' or similar).Affected if The software is found on the system
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Determine the installed WebAccess versionOpen the Windows Control Panel > Programs and Features, or check the version information of the main executable (typically BWAuto.exe or bd.exe in the WebAccess installation folder).Affected if The version is exactly 7.2 (the affected version)
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Verify the web interface service is runningCheck if the WebAccess web service is active by looking for the IIS or standalone web service ports (default ports include 80, 443, or 8080 for WebAccess). Use 'netstat -an' to list listening ports.Affected if The WebAccess web portal is accessible on the network
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Review access logs for the AccessCode2 parameterExamine WebAccess server logs (typically in the \WebAccess\LOG or \WebAccess\SCADA\logs folder) for incoming requests containing 'AccessCode2' as a parameter. Search for unusually long strings in this parameter.Affected if Requests with abnormally long AccessCode2 values appear in logs, indicating possible exploitation attempts
If Advantech WebAccess version 7.2 is installed and its web interface is accessible, the environment is affected by this buffer overflow vulnerability.
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 dataApply vendor patch if available; otherwise restrict network access to WebAccess services and implement input validation on the AccessCode2 parameter as a compensating control.
- Consultation6.0 h
- Implementation8.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2014-0989 — 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-2014-0989 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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