CVE-2024-11548
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 DWG 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 DWG 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-24745.
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 an out-of-bounds write vulnerability in its DWG file parsing functionality. The flaw results from insufficient validation of user-supplied data during DWG file parsing, allowing writes beyond allocated buffer boundaries. Successful exploitation enables arbitrary code execution within 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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Locate IrfanView installationSearch for i_view64.exe or i_view32.exe in common installation paths such as C:\Program Files\IrfanView or C:\Program Files (x86)\IrfanView. Alternatively, open Add or Remove Programs and confirm IrfanView is listed.Affected if IrfanView is present on the system
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Identify installed versionRight-click the IrfanView executable (i_view64.exe or i_view32.exe), select Properties, and view the File Version on the Details tab. Alternatively, launch IrfanView and navigate to Help > About to see the version number.Affected if The installed version is exactly 4.67
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Determine if DWG handling is activeCheck whether IrfanView can open or preview DWG files. Attempt to open a DWG file with IrfanView, or verify if DWG file thumbnails are generated when IrfanView is registered as the thumbnail handler in Windows Explorer.Affected if DWG files can be opened, previewed, or thumbnails are generated by IrfanView
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Verify DWG plugin presenceOpen the IrfanView plugins folder (typically C:\Program Files\IrfanView\Plugins) and search for any DWG-related DLL files such as dwg.dll or files containing 'dwg' in the name.Affected if DWG support plugins are installed and loaded by IrfanView
The environment is affected if IrfanView version 4.67 is installed with DWG file handling capabilities enabled or available plugins present.
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 dataUsers should avoid opening untrusted or unverified DWG files and ensure IrfanView is updated to any available patched version. Organizations may consider disabling DWG file preview or implementing file type restrictions until a patch is applied.
- Consultation4.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-11548 — 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-2024-11548 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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