CVE-2024-11556
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-24795.
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 fails to properly validate user-supplied data when parsing DXF files, leading to memory corruption that can be exploited for remote 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 installationCheck for IrfanView installation by searching for 'IrfanView' in Program Files (typically C:\Program Files\IrfanView or C:\Program Files (x86)\IrfanView) or check the Windows registry under HKLM\SOFTWARE\IrfanView or HKLM\SOFTWARE\Wow6432Node\IrfanViewAffected if IrfanView is not installed on the system
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Identify installed IrfanView versionLocate the IrfanView executable (i_view64.exe or i_view32.exe), right-click, select Properties, and check the Version tab for the product versionAffected if The installed version is 4.67 (exact match)
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Verify DXF file support is presentCheck the IrfanView plugins folder (typically C:\Program Files\IrfanView\Plugins) for the DXF-related plugin file (usually named irfanview_plugins.zip or individual plugin files)Affected if DXF plugin or filter is missing, though this is unlikely as it ships with standard installation
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Confirm DXF file handling capabilityLaunch IrfanView and attempt to open a DXF file, or verify the file type is listed in IrfanView's supported formats (look for .dxf in the 'Options' > 'Properties/Settings' > 'File types' or attempt to load a DXF file)Affected if DXF files can be opened and parsed by IrfanView
The system is affected if IrfanView version 4.67 is installed and can open or parse DXF files, as the vulnerability lies in the DXF file parsing code for this specific version.
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 DXF files until an official vendor patch is released; ensure users do not open DXF files from untrusted sources.
- Consultation4.0 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-2024-11556 — 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-2024-11556 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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