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IrfanviewApplication

CVE-2024-11509

HIGH · 7.8 CVSS v3.1 Published 2024-11-22
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 SVG File Parsing Heap-based Buffer Overflow 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 SVG files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-22185.

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 contains a heap-based buffer overflow vulnerability in its SVG file parsing functionality. The flaw exists due to insufficient validation of user-supplied data length before copying to a heap buffer, allowing remote code execution in the context of the current process when a malicious SVG file is opened.

MitigationApply the vendor patch when available; until then, avoid opening untrusted SVG files from unknown sources and disable SVG preview handlers in untrusted contexts.

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:= 4.62

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:3.1/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 checks

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

  1. Check if IrfanView is installed
    Locate IrfanView installation directory, typically in Program Files (x86)\IrfanView or Program Files\IrfanView. Look for i_view64.exe (64-bit) or i_view32.exe (32-bit).
    Affected if IrfanView is not installed on the system.
  2. Determine installed IrfanView version
    Right-click the IrfanView executable (i_view64.exe or i_view32.exe), select Properties, and check the File Version in the Details tab. Alternatively, open IrfanView and go to Help > About IrfanView.
    Affected if The installed version is exactly 4.62.
  3. Verify SVG parsing capability is available
    Check the IrfanView plugins folder (usually Plugins subdirectory within the IrfanView installation) for SVG-related DLL files (commonly i_plug.dll or svg.dll if available). Also attempt to open any .svg file in IrfanView to confirm parsing is functional.
    Affected if SVG files can be opened and rendered in IrfanView, indicating the vulnerable parsing code is active.

A system is affected only if IrfanView version 4.62 is installed AND the SVG file parsing functionality is accessible and operational.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the vendor patch when available; until then, avoid opening untrusted SVG files from unknown sources and disable SVG preview handlers in untrusted contexts.

Recommended fix Moderate confidence

IrfanView 4.65 or latest available version (successor to 4.62)

  1. 1. Navigate to the official IrfanView website at www.irfanview.com
  2. 2. Download the latest version of IrfanView (version 4.65 or later as of late 2024)
  3. 3. Run the installer and follow the prompts to upgrade from version 4.62
  4. 4. Ensure all IrfanView plugins are also updated to their latest versions, particularly the SVG plugin if installed
  5. 5. Verify the installation completed successfully by checking Help > About IrfanView
Caveat Standard upgrade - review release notes for any plugin compatibility changes; ensure third-party plugins are compatible with the new version

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

Fix this in Irfanview Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
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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-2024-11509 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
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