CVE-2024-11558
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 Memory Corruption 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 memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-24808.
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 confidenceIrfanView contains a memory corruption vulnerability in its DXF file parser due to insufficient validation of user-supplied data. An attacker can exploit this by tricking a user into opening a specially crafted malicious DXF file, potentially allowing 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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Confirm IrfanView installation and versionCheck the IrfanView executable version. In Windows, right-click irfanview.exe, select Properties, and look at the Version tab. The executable is typically located in C:\Program Files\IrfanView\ or C:\Program Files (x86)\IrfanView\Affected if The installed version is exactly 4.67 (matching the affected version '=' 4.67 in the CVE)
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Verify DXF plugin or filter is presentIrfanView uses plugins for additional file formats. Check the plugins folder (typically C:\Program Files\IrfanView\Plugins\) for any DXF-related DLL files such as DXF formats.dll or similarAffected if A DXF handling plugin exists and is loaded by IrfanView
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Check for DXF file associationsExamine if .dxf file extension is associated with IrfanView. In Windows, go to Settings > Apps > Default Apps > Choose defaults by file type, or use 'assoc' and 'ftype' commands in Command PromptAffected if DXF files are associated with or openable by IrfanView (the parser vulnerability only triggers when processing a DXF file)
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Inspect recent DXF file openingsReview recent file history or temp folders for any recently opened DXF files. Check IrfanView's recently opened files list if availableAffected if A specially crafted DXF file has been opened in IrfanView 4.67
A user is affected if IrfanView version 4.67 is installed AND the DXF file handling capability is enabled or associated, as the memory corruption only occurs when the vulnerable DXF parser processes a malicious DXF file.
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 unknown DXF files until an official patch is released. Consider disabling DXF file preview or association in IrfanView as a temporary workaround.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-11558 — 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-2024-11558 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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