CVE-2025-7321
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 CADImage Plugin DWG File Parsing Memory Corruption Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView CADImage Plugin. 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 memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26421.
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 confidenceThe CADImage plugin in IrfanView fails to properly validate user-supplied data during DWG file parsing, leading to memory corruption. An attacker can exploit this by tricking a user into opening a specially crafted malicious DWG file, achieving 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< 15.0.0.8CVSS 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:3.0/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 the CADImage plugin installationSearch the system for files named CADImage or cadimage (check common IrfanView plugin directories, the program folder, and subdirectories)Affected if The plugin file exists on the system
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Identify the CADImage plugin versionRight-click the CADImage DLL file, select Properties, then view the Version tab to find the Product Version or File Version entryAffected if The version number displayed is lower than 15.0.0.8 (for example, 15.0.0.7, 14.x.x.x, or any version missing from the Version tab)
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Verify DWG file handling is enabledOpen IrfanView, go to Options > Properties/Settings, then check Image Properties or File Type associations to confirm .dwg files are registered to open with IrfanView using the CADImage pluginAffected if DWG file extension is associated with IrfanView and the CADImage plugin handles the rendering
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Confirm recent DWG file usageCheck the system for recently opened .dwg files, or review browser/download history for DWG file downloads, or check IrfanView's recently opened files list if availableAffected if DWG files have been opened in IrfanView recently, indicating the plugin was used to process untrusted content
The system is affected if the CADImage plugin version is present and is below 15.0.0.8, and DWG files are processed through IrfanView using this plugin.
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.
dbcve · scoped15.0.0.8
Until an official patch is available, disable or remove the CADImage plugin and avoid opening DWG files from untrusted sources. Implement application whitelisting and user training to prevent opening of suspicious files.
15.0.0.8 or later
- Obtain Cadimage plugin version 15.0.0.8 or later from the official vendor
- Install the updated plugin to replace the vulnerable version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-7321 — 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-2025-7321 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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