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Uncontrolled Resource ConsumptionWeakness · CWE-400

CVE-2026-33268

MEDIUM · 6.5 CVSS v3.1 Published 2026-03-25
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
74/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

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
Nanoleaf Lines 12.3.2 does not authenticate firmware file uploads. A remote, unauthenticated attacker can upload firmware files on the device and consume storage resources. Fixed in 12.3.6.

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 · moderate confidence

Nanoleaf Lines version 12.3.2 lacks authentication on its firmware upload endpoint, allowing remote unauthenticated attackers to upload arbitrary firmware files. This enables storage resource exhaustion and potentially malicious firmware injection. The vulnerability is fixed in version 12.3.6.

MitigationUpdate Nanoleaf Lines devices to firmware version 12.3.6 or later. Until patched, isolate devices on a restricted network segment to minimize exposure to unauthenticated attackers.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

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
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

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. Identify the device model
    Locate the Nanoleaf Lines device in your network inventory or physical label to confirm it is the Lines product line.
    Affected if The device is not a Nanoleaf Lines product.
  2. Retrieve the current firmware version
    Access the Nanoleaf mobile app or web interface and navigate to the device settings to view the installed firmware version.
    Affected if The firmware version displayed is 12.3.2.
  3. Compare the version to the affected range
    Check if the installed version falls within 12.3.2 through 12.3.5 (all versions before the 12.3.6 fix).
    Affected if The firmware version is 12.3.2, 12.3.3, 12.3.4, or 12.3.5.
  4. Assess network accessibility of the firmware upload endpoint
    Determine whether the Nanoleaf Lines device is reachable on an unrestricted network segment where unauthenticated HTTP requests to the firmware upload URL would be possible.
    Affected if The device is exposed on a network that permits unauthenticated access to its HTTP-based firmware upload functionality.

You are affected if the Nanoleaf Lines firmware version is 12.3.2 through 12.3.5 and the device is network-accessible to unauthenticated attackers.

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

Update Nanoleaf Lines devices to firmware version 12.3.6 or later. Until patched, isolate devices on a restricted network segment to minimize exposure to unauthenticated attackers.

Recommended fix High confidence

12.3.6

  1. 1. Ensure the Nanoleaf Lines device is powered on and connected to the network
  2. 2. Open the Nanoleaf mobile app (available on iOS or Android)
  3. 3. Navigate to the device settings for your Nanoleaf Lines product
  4. 4. Check the current firmware version in the device settings
  5. 5. If the firmware is below 12.3.6, look for a firmware update option within the app settings
  6. 6. Initiate the firmware update and allow the process to complete
  7. 7. After the update finishes, verify the firmware version shows 12.3.6 or higher

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

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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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-2026-33268 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
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  • Version or environment caveats, and links to real fixes
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