CVE-2024-11561
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 DXF File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DXF files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-24857.
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 confidenceIrfanView contains an out-of-bounds read vulnerability in its DXF file parser. The parser fails to properly validate user-supplied data when processing DXF files, allowing an attacker to read past the end of an allocated buffer. This memory read primitive can be chained to achieve arbitrary code execution in the context of the current process.
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= 4.67CVSS 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:3.1/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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Identify IrfanView installationCheck for IrfanView executable (i_view64.exe or i_view32.exe) in typical locations: C:\Program Files\IrfanView, C:\Program Files (x86)\IrfanView, or search for the executable using 'where i_view64.exe' or 'where i_view32.exe' from command promptAffected if IrfanView is found on the system
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Determine installed versionRight-click the IrfanView executable, select Properties, then check the Details tab for Product Version. Alternatively, open IrfanView and go to Help > About IrfanView to display the version numberAffected if Version number equals exactly 4.67
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Verify DXF file handling capabilityCheck if the DXF file type is associated with IrfanView or if the user has opened DXF files before. Look in the IrfanView plugin directory (typically C:\Program Files\IrfanView\Plugins) for any DXF-related plugins, though DXF support is typically built into the main executableAffected if DXF file association exists or user has history of opening DXF files in IrfanView
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Check for recent DXF file processingReview Windows recent files or the application's recent file history to see if DXF files have been opened in IrfanView. Check the application's recent files list in File > Open RecentAffected if DXF files have been opened in IrfanView 4.67
The environment is affected if IrfanView version 4.67 is installed and the system or its users process DXF files using this software.
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 dataAvoid opening untrusted or unverified DXF files in IrfanView until an official patch is released. Consider disabling or restricting file type associations for DXF files as a defensive measure.
- Consultation3.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-11561 — 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-2024-11561 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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- Version or environment caveats, and links to real fixes
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