CVE-2024-11523
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-24597.
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 a memory corruption vulnerability in its DXF file parser due to insufficient validation of user-supplied data. When parsing malicious DXF files, the lack of proper bounds checking or input validation leads to memory corruption that can be leveraged for 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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Verify IrfanView installationCheck if IrfanView is installed on the system by looking for the application in standard installation directories or the program listAffected if IrfanView is not installed, then the system is not affected by this CVE
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Determine installed IrfanView versionOpen IrfanView and check the version information (typically via Help > About, or right-click the executable and view Properties > Details)Affected if The installed version is exactly 4.67, which matches the affected version listed for this CVE
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Compare version to affected rangeThe affected version is specifically 4.67. If the installed version differs (higher or lower), the specific vulnerability may not applyAffected if Only version 4.67 is confirmed affected; other versions would need separate verification
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Assess DXF file handling exposureCheck if DXF file types are associated with IrfanView or if users commonly open DXF files using IrfanView. This can be verified in Windows Default Apps settings or by checking file associations in the systemAffected if DXF files are associated with or commonly opened in IrfanView, creating a potential attack vector for this vulnerability
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Identify attack vector triggerThe vulnerability triggers specifically when IrfanView parses a malicious DXF file. There is no remote trigger without user interactionAffected if A user opens or previews a specially crafted DXF file using the affected IrfanView version, which would trigger the memory corruption in the DXF parser
A system is affected by this CVE only if IrfanView version 4.67 is installed AND a user opens or previews a malicious DXF file with that 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 or unverified DXF files with IrfanView until an official patch is available. Consider disabling file associations for DXF files or using alternative viewers for DXF content.
- Consultation4.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-11523 — 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-2024-11523 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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