IrfanviewApplication

CVE-2017-15765

HIGH · 7.8 CVSS v3.0 Published 2017-10-22
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
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 4.50 - 64bit with CADImage plugin version 12.0.0.5 allows attackers to cause a denial of service or possibly have unspecified other impact via a crafted .dwg file, related to "Data from Faulting Address is used as one or more arguments in a subsequent Function Call starting at CADIMAGE+0x00000000003e9462."

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

IrfanView 64-bit version 4.50 with CADImage plugin version 12.0.0.5 suffers from a memory corruption vulnerability when parsing specially crafted .dwg files. The vulnerability involves data from a faulting address being used as arguments in a subsequent function call, indicating a write-what-where or similar memory corruption condition that can lead to denial of service or potentially arbitrary code execution.

MitigationUpdate the CADImage plugin to a patched version if available, or disable/remove the CADImage plugin from IrfanView installations until a fix is released. Avoid opening untrusted .dwg files in affected IrfanView configurations.

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
IrfanviewApplication
Affected:= 4.50
CadimageApplication
Affected:= 12.0.0.5

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 64-bit installation
    Locate i_view64.exe in the IrfanView installation directory (typically C:\Program Files\IrfanView). Right-click the file, select Properties, and verify the File Version is 4.50.
    Affected if i_view64.exe version 4.50 is present on the system
  2. Verify CADImage plugin version
    Navigate to the IrfanView Plugins folder (usually C:\Program Files\IrfanView\Plugins). Locate CADImage.dll or CADImage plugin files. Right-click and check Properties > Details for version, or run 'dir CADImage* /s' from the IrfanView directory in Command Prompt.
    Affected if CADImage plugin version 12.0.0.5 is installed
  3. Confirm CADImage plugin is loaded
    Open IrfanView, go to Help > About > Plugins. Verify CADImage appears in the list of loaded plugins. Alternatively, attempt to open any .dwg file or view its thumbnail in IrfanView.
    Affected if CADImage plugin is enabled and listed as loaded in IrfanView
  4. Check for .dwg file handling capability
    Attempt to open a .dwg file in IrfanView or check if .dwg file thumbnails render in Windows Explorer using IrfanView. If IrfanView can process .dwg files, the vulnerable code path is reachable.
    Affected if IrfanView can open or thumbnail .dwg files via the CADImage plugin

User is affected if both IrfanView 64-bit version 4.50 and CADImage plugin version 12.0.0.5 are installed together and the plugin is capable of handling .dwg 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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update the CADImage plugin to a patched version if available, or disable/remove the CADImage plugin from IrfanView installations until a fix is released. Avoid opening untrusted .dwg files in affected IrfanView configurations.

Fix this in Irfanview Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing3.0 h
  • Review / QA2.0 h
8.0 hours of engineering $1,390
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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-2017-15765 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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