CVE-2024-11559
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 Write 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 write 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-24809.
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 confidenceA high-severity out-of-bounds write vulnerability exists in IrfanView's DXF file parser due to insufficient validation of user-supplied data during file parsing. The flaw allows an attacker to write past the end of an allocated buffer by crafting a malicious DXF file, potentially achieving arbitrary code execution in the context of the current user 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 installed IrfanView versionLocate the IrfanView executable (i_view32.exe or i_view64.exe) in the program directory, typically under C:\Program Files\IrfanView or C:\Program Files (x86)\IrfanView. Right-click the file, select Properties, and read the File Version number from the Details tab.Affected if The installed version is exactly 4.67
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Verify DXF file plugin existsCheck the IrfanView plugins folder (usually C:\Program Files\IrfanView\plugins or similar) for the presence of a DXF-related DLL file (commonly dxf.dll) that enables DXF file parsing support.Affected if The DXF plugin file is present in the plugins directory
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Confirm DXF file handling capabilityAttempt to open any .dxf file in IrfanView, or check if .dxf file associations are registered to IrfanView in the system. Look for DXF in the list of supported file types when opening IrfanView.Affected if IrfanView can open or preview DXF files on this system
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Assess DXF file exposure riskReview file storage locations, email attachments, downloads folder, or network shares for DXF files. Determine if automated processes or users handle DXF files from external or untrusted sources.Affected if Users or automated processes in the environment handle DXF files from potentially untrusted sources
Environment is affected if IrfanView version 4.67 is installed with DXF file handling capability and users process DXF files.
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 dataOrganizations should update IrfanView to the latest version once the vendor releases a patch, and restrict or block DXF file handling from untrusted sources until the patch is applied.
- Consultation4.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-11559 — 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-2024-11559 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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