CVE-2022-40656
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 · uneditedThis vulnerability allows remote attackers to execute arbitrary code on affected installations of NIKON NIS-Elements Viewer 13.2.0.21165. 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 ND2 files. Crafted data in a ND2 file can trigger a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-15072.
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 confidenceThis is an out-of-bounds read vulnerability in NIKON NIS-Elements Viewer when parsing ND2 image files. The parser reads past the end of an allocated buffer when processing crafted ND2 file data. An attacker can exploit this to achieve arbitrary code execution in the context of the current user process by tricking the victim into opening a malicious ND2 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= 13.2.0.21165CVSS 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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Check installed version of Nikon NIS-Elements ViewerOpen the application, then navigate to Help > About or check the program's file properties (right-click the executable > Properties > Details) to view the version numberAffected if The installed version is exactly 13.2.0.21165
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Verify ND2 file parsing capability is presentOpen the application and attempt to open or import an ND2 file, or check File > Open menu for ND2 file type supportAffected if ND2 file parsing is available and the application can open .nd2 files
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Inspect recent file access history for ND2 filesCheck the application's recent files list (File > Recent) or examine Windows Jump List/Recent Documents for any recently opened ND2 filesAffected if Any ND2 files have been opened recently, especially from untrusted sources
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Check for ND2 file association handlingRight-click any .nd2 file in Windows Explorer > Open with > Choose default app, or go to Settings > Apps > Default apps > Choose default apps by file type to verify .nd2 associationAffected if Nikon NIS-Elements Viewer is set as the default handler for .nd2 files
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Review application plugins or modules related to ND2 processingIn the application, check for installed plugins (typically in Help > Plugins or a Plugins/Modules settings menu) for any ND2-specific processing modulesAffected if ND2 parsing plugins or modules are loaded and enabled
You are affected if your installed Nikon NIS-Elements Viewer is version 13.2.0.21165 and the ND2 file parsing feature is present and functional on your system.
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.
From vendor dataAvoid opening untrusted ND2 files from unknown or unverified sources. Apply vendor patches when released. Run the application with least privileges to limit impact of potential code execution.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2022-40656 — 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-2022-40656 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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