CVE-2017-9889
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 · uneditedIrfanView version 4.44 (32bit) with FPX Plugin 4.46 allows attackers to cause a denial of service or possibly have unspecified other impact via a crafted .fpx file, related to a "Read Access Violation starting at FPX!FPX_GetScanDevicePropertyGroup+0x0000000000003714."
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 confidenceA memory corruption vulnerability in IrfanView's FPX plugin (version 4.46) allows attackers to cause a denial of service via a crafted .fpx file. The vulnerability manifests as a read access violation at FPX_GetScanDevicePropertyGroup, indicating improper bounds checking when parsing malformed FlashPix image files.
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= 4.44= 4.46CVSS 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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Locate the FPX plugin fileNavigate to the IrfanView installation directory and find the plugins folder. Look for a file related to FPX support (commonly named FPX.dll, fpx.dll, or similar FlashPix-related DLL).Affected if The FPX plugin file exists in the IrfanView plugins directory, indicating the plugin is installed.
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Check the FPX plugin versionRight-click the FPX plugin DLL file, select Properties, then view the Details tab to find the File Version or Product Version. Alternatively, use a command like 'powershell (Get-Item "path\to\fpx.dll").VersionInfo' to retrieve version details.Affected if The FPX plugin version is 4.46, matching the vulnerable version specified in the CVE.
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Verify the main IrfanView versionOpen IrfanView and go to Help > About, or right-click the main IrfanView executable and check its version properties.Affected if The IrfanView version is 4.44, which is listed as an affected version in the CVE.
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Confirm plugin is enabledIn IrfanView, go to Options > Properties/Settings > Plugins. Verify the FPX plugin is checked or enabled in the plugin list.Affected if The FPX plugin is enabled and available for loading when opening .fpx files.
You are affected if the FPX plugin version 4.46 (or the main IrfanView version 4.44) is installed with the plugin enabled, as the vulnerability triggers when parsing a crafted FlashPix (.fpx) file through the plugin.
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 dataUpdate the FPX plugin to a patched version once available, or disable/remove the plugin if unused. Avoid opening untrusted .fpx files from unknown sources.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-9889 — 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-2017-9889 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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