CVE-2017-12708
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 · uneditedAn Improper Restriction Of Operations Within The Bounds Of A Memory Buffer issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. Researchers have identified multiple vulnerabilities that allow invalid locations to be referenced for the memory buffer, which may allow an attacker to execute arbitrary code or cause the system to crash.
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 confidenceA memory buffer boundary restriction vulnerability in Advantech WebAccess HMI software versions prior to V8.2_20170817 allows attackers to reference invalid memory locations, potentially enabling arbitrary code execution or causing system crashes.
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<= 8.2CVSS 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
- 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 checksWork through these to decide whether this CVE applies to you.
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Locate the Advantech WebAccess installation directoryCheck common installation paths such as C:\Program Files\Advantech\WebAccess, C:\WebAccess, or look for the folder named 'WebAccess' on the system. Use File Explorer or the 'dir /s /b "C:\*WebAccess*"' command to search drives.Affected if The WebAccess installation directory exists on the system, indicating the software is installed.
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Identify the installed WebAccess versionWithin the installation directory, locate a version file, readme, or the main executable (such as BEMS.exe, WADashboard.exe, or similar). Right-click the executable, select Properties, and check the Version tab. Alternatively, look for a version.txt, version.ini, or release notes file in the root installation folder.Affected if The version listed is 8.2 or earlier, or the version string does not contain '20170817' or a later date.
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Verify the exact version string against the patch levelCompare the full version string (including any build numbers or date codes) to V8.2_20170817. Check the WebAccess dashboard, version information dialog within the application, or any About section accessible through the HMI interface if available.Affected if The version string is lower than V8.2_20170817 (for example, 8.2, 8.1, 8.0, or any version with a date earlier than August 17, 2017).
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Confirm the WebAccess services are activeOpen Services (services.msc) and look for services related to Advantech WebAccess such as 'WebAccess Node Service', 'WebAccess Dashboard Service', or similar. Verify their status.Affected if Any WebAccess service is running on a version identified as vulnerable in step 2 or 3.
The system is affected if Advantech WebAccess HMI software is installed and the installed version is 8.2 or earlier, specifically any version lower than V8.2_20170817.
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 V8.2_20170817 or later to remediate the vulnerability; if upgrade is not immediately feasible, network-segment the affected system and restrict access to trusted entities only.
- Consultation8.0 h
- Implementation16.0 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-2017-12708 — 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-2017-12708 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
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