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CVE Record

CVE-2017-14558: STDU Viewer 1.6.375 allows attackers to execute arbitrary code or cause a denial of service via a crafted ....

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+0x0000000000018cc2."

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2017-14558 affects STDU Viewer 1.6.375 when handling a specially crafted .djvu document. The reported impact is arbitrary code execution or application denial of service, so risk is tied to users opening untrusted DJVU files. Public metadata does not provide CVSS, CWE, vendor fix status, or confirmed exploitation.

Executive priority

Treat this as a targeted endpoint document-handling risk, not an internet-wide emergency based on the supplied evidence. Prioritize inventory and removal or update of legacy STDU Viewer installations, especially for users handling external documents.

Technical view

The CVE describes a user-mode write access violation in STDU Viewer’s DjVu handling, referenced near STDUDjVuFile!DllUnregisterServer. The trigger is a crafted .djvu file. The record reports possible arbitrary code execution or denial of service, but the supplied sources do not define root cause, exploit maturity, affected ranges beyond 1.6.375, or patch details.

Likely exposure

Exposure is most plausible on endpoints where STDU Viewer 1.6.375 is installed and associated with DJVU files. Risk increases if users receive or download DJVU files from email, web, shared drives, or external parties.

Exploitation context

The source bundle does not show CISA KEV listing or other cited evidence of active exploitation. The scenario is document-driven: a crafted DJVU file must reach a system using the affected viewer and be opened or processed.

Researcher notes

Public metadata is sparse. The key lead is a crafted DJVU causing a user-mode write access violation in STDU Viewer 1.6.375. No CVSS vector, CWE, patch reference, affected-version range, or active exploitation evidence is present in the provided bundle.

Mitigation direction

  • Inventory endpoints for STDU Viewer 1.6.375 installations.
  • Check vendor or trusted software-maintenance guidance for available updates or replacement advice.
  • Remove STDU Viewer where business use is not required.
  • Restrict opening DJVU files from untrusted email, web, and shared-drive sources.
  • Review file-association policies for DJVU documents on managed endpoints.

Validation and detection

  • Confirm whether STDU Viewer 1.6.375 exists in software inventory.
  • Identify users or groups with a business need to open DJVU files.
  • Check endpoint controls for quarantine or warning on untrusted DJVU attachments.
  • Review crash telemetry for STDU Viewer around DJVU file handling.
  • Verify whether vendor guidance names a fixed version or supported replacement.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2017-14558 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.