CVE-2024-11570
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 Use-After-Free 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 validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-24885.
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 use-after-free vulnerability in IrfanView's DXF file parser allows remote code execution. The flaw stems from the parser failing to validate object existence before performing operations on it, leading to a UAF condition that can be leveraged for RCE when a user opens a malicious DXF file.
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 installation and versionLocate IrfanView on the system (typically in Program Files or Program Files (x86)). Check the version by right-clicking the executable, selecting Properties, and viewing the Details tab, or by running IrfanView and checking Help > About. Note the exact version number displayed.Affected if The installed version is exactly 4.67 (matches the affected version)
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Determine if DXF file support is availableCheck whether the DXF file type handler is present. This can be done by examining IrfanView's plugin directory (commonly named 'plugins' in the IrfanView installation folder) for DXF-related plugins, or by attempting to open a known DXF file in IrfanView to see if it renders or displays an error.Affected if DXF files can be opened or parsed by IrfanView (the vulnerable parser is active)
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Verify DXF file associations or recent file activityCheck if IrfanView is associated with .dxf file extension (viewable via Tools > File Associations in IrfanView, or via Windows default programs settings). Also review recent file access logs or the application's recent files list for any opened .dxf files.Affected if DXF files are associated with IrfanView or .dxf files have been opened recently
A user is affected if IrfanView version 4.67 is installed AND the DXF parser/functionality is present and capable of opening 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 dataAvoid opening untrusted DXF files in IrfanView. Apply vendor patches when available. Consider using alternative image viewers or disabling DXF file associations until the vulnerability is remediated.
- Consultation4.0 h
- Implementation6.0 h
- Testing8.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-11570 — 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-2024-11570 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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