dbcve.org
XnviewApplication

CVE-2017-14279

HIGH · 7.8 CVSS v3.0 Published 2017-09-11
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
XnView Classic for Windows Version 2.40 allows attackers to cause a denial of service or possibly have unspecified other impact via a crafted .jb2 file, related to a "Read Access Violation starting at jbig2dec+0x0000000000005643."

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

XnView Classic Version 2.40 contains a memory corruption vulnerability in its jbig2dec library component when parsing JBIG2 (.jb2) image files. A specially crafted .jb2 file triggers a read access violation at jbig2dec+0x0000005643, causing denial of service and potentially enabling arbitrary code execution.

MitigationAvoid opening untrusted or unverified .jb2 files in XnView Classic. Monitor for vendor patches updating the jbig2dec library and apply them promptly.

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
XnviewApplication
Affected:= 2.40

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. Identify XnView Classic installation
    Search for XnView Classic in installed programs (Windows: Control Panel > Programs and Features, or check C:\Program Files\XnView or C:\Program Files (x86)\XnView folders)
    Affected if XnView Classic version 2.40 is installed
  2. Verify the exact version number
    Right-click xnview.exe > Properties > Details tab, or run 'xnview.exe /?' from command line to check version
    Affected if Version displays as 2.40 exactly
  3. Confirm jbig2dec library presence
    Affected if jbig2dec library file exists in the XnView folder
  4. Inspect file association or recent file history
    Check Windows recent documents, file associations for .jb2 extension, or XnView's recent files list for any .jb2 image files
    Affected if Any .jb2 files have been opened recently or .jb2 is associated with XnView

A user is affected if XnView Classic version 2.40 is installed and the jbig2dec library component is present, enabling parsing of JBIG2 (.jb2) image files that could trigger the memory corruption.

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

Avoid opening untrusted or unverified .jb2 files in XnView Classic. Monitor for vendor patches updating the jbig2dec library and apply them promptly.

Fix this in Xnview Scoped from the published advisory
  • Consultation2.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
16.0 hours of engineering $2,800
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,480.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2017-14279 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

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-2017-14279 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

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
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data