CVE-2024-11511
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 XCF Plugin XCF 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 XCF 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-22735.
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 confidenceHeap-based buffer overflow in IrfanView XCF plugin during XCF file parsing. The vulnerability stems from insufficient validation of user-supplied data length before copying into a heap-allocated buffer, enabling remote code execution when a user opens a malicious XCF file.
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>= 4.62, < 4.70CVSS 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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Identify installed IrfanView versionOpen IrfanView, click Help > About, or right-click irfanview.exe in the program directory and select Properties > Details to view the File VersionAffected if version number is 4.62 or higher but lower than 4.70
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Locate the XCF plugin fileBrowse to the IrfanView plugins directory (typically C:\Program Files\IrfanView\Plugins or C:\Program Files (x86)\IrfanView\Plugins) and search for a file with 'XCF' in the name, commonly XCF.u3d or similarAffected if an XCF plugin file is present in the plugins directory
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Confirm XCF file handling is availableAttempt to open any .xcf file in IrfanView, or check if IrfanView recognizes .xcf as an associated file type - the plugin loads automatically when a XCF file is openedAffected if IrfanView can open and display XCF files, indicating the plugin is active
You are affected if your IrfanView installation version is between 4.62 and 4.69 (inclusive) AND the XCF plugin is present and capable of processing XCF files.
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 · scoped4.70
Avoid opening untrusted XCF files; update IrfanView and its plugins to the latest version once patch is available; consider disabling the XCF plugin if not required.
IrfanView 4.70 or later
- Download IrfanView version 4.70 or later from the official website (www.irfanview.com)
- Install the new version, ensuring the XCF plugin is also updated to the latest compatible version
- Verify the installation by checking Help > About IrfanView shows version 4.70 or higher
- Test with a sample XCF file to confirm the plugin loads correctly
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-11511 — 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-2024-11511 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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