Stdu ViewerApplication · Stdutility

CVE-2017-14548

HIGH · 7.8 CVSS v3.0 Published 2017-09-18
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
Zero-click

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
STDU Viewer 1.6.375 allows attackers to execute arbitrary code or cause a denial of service via a crafted .djvu file, related to a "User Mode Write AV starting at STDUDjVuFile!DllUnregisterServer+0x000000000000854d."

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 confidence

STDU Viewer 1.6.375 contains a memory corruption vulnerability in its DjVu file parsing component. The vulnerability triggers a User Mode Write Access Violation at STDUDjVuFile!DllUnregisterServer when processing a specially crafted .djvu file, which can be leveraged for arbitrary code execution or causes a denial of service.

MitigationDiscontinue use of STDU Viewer 1.6.375 for DjVu files until a patched version is available from the vendor; consider using alternative DjVu viewers or converting documents to safer formats. Implement file type restrictions and email/ download scanning to block untrusted .djvu attachments.

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
Stdu ViewerApplication
Affected:= 1.6.375

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:L/AC:L/PR:L/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 checks

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

  1. Verify STDU Viewer installation
    Check if STDU Viewer is installed on the system by looking for the application in installed programs (Control Panel > Programs and Features) or by searching for 'STDU Viewer' in the Start menu or program files directory.
    Affected if STDU Viewer version 1.6.375 is installed
  2. Confirm installed version number
    Right-click on the STDU Viewer application icon, select Properties, and check the 'File version' or 'Product version' field in the Details tab. Alternatively, right-click the executable and select Properties to view version information.
    Affected if The version listed is exactly 1.6.375
  3. Locate the DjVu parsing component
    Search for STDUDjVuFile.dll in the STDU Viewer installation directory (typically C:\Program Files\STDU Viewer or C:\Program Files (x86)\STDU Viewer).
    Affected if STDUDjVuFile.dll exists in the STDU Viewer installation folder
  4. Check for .djvu file association
    Right-click any .djvu file on the system, select 'Open with' > 'Choose another app', and check if STDU Viewer is listed as an option or set as the default handler for .djvu files.
    Affected if STDU Viewer is associated as the default handler for .djvu files

You are affected if STDU Viewer version 1.6.375 is installed and the STDUDjVuFile.dll component exists, especially if the application is used to open untrusted .djvu files.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Discontinue use of STDU Viewer 1.6.375 for DjVu files until a patched version is available from the vendor; consider using alternative DjVu viewers or converting documents to safer formats. Implement file type restrictions and email/ download scanning to block untrusted .djvu attachments.

Fix this in Stdu Viewer Scoped from the published advisory
  • Consultation2.0 h
  • Testing1.0 h
  • Review / QA1.0 h
4.0 hours of engineering $750
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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-2017-14548 in production — separate from our analysis above.

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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
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