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CadimageApplication · Cadsofttools

CVE-2025-7256

HIGH · 7.8 CVSS v3.0 Published 2025-07-21
Fix available
A fix is available. Upgrade to 15.0.0.8 or later.
See remediation →
81/100
Remediation priority · High
No privileges

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 · unedited
IrfanView CADImage Plugin DXF 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 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-26119.

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 confidence

The CADImage plugin in IrfanView lacks proper validation of user-supplied data when parsing DXF files, leading to memory corruption. An attacker can exploit this by delivering a malicious DXF file that, when opened by a user, triggers the corruption and allows arbitrary code execution in the context of the current process.

MitigationAvoid opening untrusted DXF files until a vendor patch is available. If the CADImage plugin is not required, consider disabling or removing it from IrfanView installations.

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
CadimageApplication
Affected:< 15.0.0.8

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Confirm IrfanView installation
    Locate the IrfanView installation directory - commonly found in C:\Program Files\IrfanView or C:\Program Files (x86)\IrfanView
    Affected if IrfanView must be present for the CADImage plugin to be vulnerable
  2. Verify CADImage plugin presence
    Look for the CADImage plugin file in the IrfanView plugins folder - typically named CadImage.dll or similar CAD-related plugin file
    Affected if The vulnerability only applies if the CADImage plugin is installed; if absent, the system is not affected
  3. Check CADImage plugin version
    Right-click the CADImage plugin DLL file, select Properties, and examine the File Version or Product Version field in the Details tab
    Affected if If the version number is less than 15.0.0.8, the installation is vulnerable to CVE-2025-7256
  4. Review DXF file handling
    Check if IrfanView is configured to open or preview DXF files - examine file associations or IrfanView's 'Options > File Types' settings
    Affected if If DXF files are associated with or can be opened by IrfanView, the system has an attack surface for this vulnerability

The environment is affected by CVE-2025-7256 if IrfanView with the CADImage plugin (version below 15.0.0.8) is installed and can open DXF files.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 15.0.0.8 or later
Fixed in 15.0.0.8
Interim mitigation

Avoid opening untrusted DXF files until a vendor patch is available. If the CADImage plugin is not required, consider disabling or removing it from IrfanView installations.

Recommended fix Moderate confidence

Cadimage 15.0.0.8 or later

  1. Identify the Cadimage plugin version currently installed in IrfanView
  2. Navigate to the official Cadimage website or IrfanView plugin download page
  3. Download Cadimage version 15.0.0.8 or later
  4. Close IrfanView completely
  5. Install the updated Cadimage plugin following vendor installation instructions
  6. Restart IrfanView and verify the plugin loads successfully

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Cadimage Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,080
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-7256 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data