CVE-2025-14849
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 · uneditedAdvantech WebAccess/SCADA is vulnerable to unrestricted file upload, which may allow an attacker to remotely execute arbitrary code.
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 confidenceAdvantech WebAccess/SCADA contains an unrestricted file upload vulnerability that allows attackers to upload arbitrary files to the system, potentially including malicious executables that can be triggered to achieve remote code execution.
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= 9.2.1CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/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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Identify WebAccess/SCADA installationLocate the Advantech WebAccess/SCADA installation directory and check version information files (such as version.ini, about dialog, or installer logs)Affected if The installed version is exactly 9.2.1
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Confirm file upload module is presentInspect the web application directories for upload-related components (look for Upload.aspx, upload.asp, upload.php, or similar file upload handlers in the web root)Affected if File upload handler scripts exist in the web application directory
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Verify upload directory accessibilityCheck the web server configuration and file system for writable directories under the web root (typically under /upload, /uploads, /files, or similar paths served by the SCADA web interface)Affected if Writable directories exist within the web-accessible path that accept file uploads without validation
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Test upload functionalityIf accessible, attempt a benign file upload to the identified upload endpoint using the web interface or APIAffected if The system accepts and stores files without enforcing file type restrictions or validation checks
The environment is affected if WebAccess/SCADA version 9.2.1 is installed AND the file upload functionality is accessible and accepts arbitrary file types without validation.
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.
dbcve · scopedRestrict file upload functionality to only allow trusted, validated file types and store uploads outside the web root; apply vendor patches when available and implement network segmentation for SCADA systems.
Obtain the patched version from Advanteh (contact support or check official security bulletins)
- 1. Contact Advantech official support to obtain the latest security patch for WebAccess/SCADA
- 2. Review the official CISA advisory (cisa.gov) for detailed vulnerability information and recommended mitigations
- 3. Check Advantech's security bulletin page (www.advantech.com) for version 9.2.1-specific patches
- 4. Before applying any patch, backup the current WebAccess/SCADA configuration and data
- 5. Apply the vendor-supplied patch in a test environment first
- 6. After verifying the patch does not break functionality, apply it to production systems
- 7. Verify the patch has been successfully applied by checking the WebAccess/SCADA version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA8.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $12,352.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-14849 — 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-2025-14849 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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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.
- 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