CVE-2018-11706
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 · uneditedFastStone Image Viewer 6.2 has a User Mode Write AV at 0x00578dd8, triggered when the user opens a malformed JPEG file that is mishandled by FSViewer.exe. Attackers could exploit this issue for DoS (Access Violation) or possibly unspecified other impact.
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 confidenceFastStone Image Viewer 6.2 contains a memory corruption vulnerability in its JPEG parsing logic. When processing a malformed JPEG file, the application triggers a User Mode Write Access Violation at a specific memory address, allowing attackers to potentially execute arbitrary code or cause denial of service.
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= 6.2CVSS 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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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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Verify FastStone Image Viewer installationCheck if FastStone Image Viewer 6.2 is installed on the system by locating the application executable or checking Add/Remove ProgramsAffected if The application version is exactly 6.2 and the software is present on the system
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Confirm installed version numberLocate the FastStone Image Viewer executable (commonly in Program Files) and check its file properties for the version, or use system utility to query installed software versionAffected if The installed version matches 6.2 exactly
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Determine if JPEG files are processedCheck whether the user or automated processes open JPEG images using FastStone Image Viewer, as the vulnerability resides in the JPEG parsing componentAffected if JPEG files are opened or previewed using the affected application version
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Check automatic preview configurationInspect the application settings or configuration for the automatic image preview feature, which can trigger parsing without user interactionAffected if Automatic preview is enabled and the application auto-processes image files
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Review for crash eventsCheck Windows Event Viewer or application logs for any recent crashes or access violations related to FastStone Image Viewer when processing imagesAffected if Memory access violation events are logged after processing image files
A system is affected if FastStone Image Viewer version 6.2 is installed and users process JPEG files with it, as the vulnerability triggers during malformed JPEG parsing.
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 dataUsers should avoid opening untrusted JPEG files and consider disabling the automatic image preview feature in FastStone Image Viewer until an official vendor patch is released.
- Consultation2.0 h
- Testing1.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2018-11706 — 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-2018-11706 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
- No weaponised exploit code, or anything meant to cause harm
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