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EmberznetApplication · Silabs

CVE-2026-47152

MEDIUM · 6.5 CVSS v3.1 Published 2026-06-25
Fix available
A fix is available. Upgrade to after 9.0.2 or later.
See remediation →
71/100
Remediation priority · Elevated
Remotely reachable Zero-click 8 weeks old

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
In EmberZNet v9.0.2 and earlier, a malformed Level Control Move command can terminate the process through a divide-by-zero fault. This command must come from a device that has already joined the network. Only devices supporting the Level Control cluster may be impacted.

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

A malformed Level Control Move command sent from an authenticated device in EmberZNet v9.0.2 and earlier triggers a divide-by-zero fault, causing process termination. Only devices supporting the Level Control cluster are impacted by this denial-of-service vulnerability.

MitigationUpgrade to a patched version of EmberZNet beyond v9.0.2 that includes proper input validation for Level Control Move commands to prevent the divide-by-zero condition.

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
EmberznetApplication
Affected:<= 9.0.2

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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. Identify EmberZNet version
    Query the device firmware or stack version information via EmberZNet CLI (e.g., 'info' command) or check firmware metadata/banner for the EmberZNet version string
    Affected if The displayed version is 9.0.2 or earlier
  2. Confirm Level Control cluster is enabled
    Inspect the device's cluster configuration (via EmberZNet GUI, CLI 'clusters' command, or ZCL cluster map) to verify the Level Control cluster (Cluster ID 0x0008) is included in the enabled clusters
    Affected if Level Control cluster appears in the list of active clusters
  3. Verify device supports Level Control
    Query the device's endpoint(s) for supported clusters using the ZCL descriptor request or check the device's ZCL cluster map via the network management interface
    Affected if Any endpoint returns Level Control cluster as a supported cluster

A device is affected if it runs EmberZNet version 9.0.2 or earlier AND has the Level Control cluster enabled or supported, as this combination allows the malformed command to trigger the divide-by-zero fault.

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
Upgrade available Upgrade to a release after 9.0.2
Interim mitigation

Upgrade to a patched version of EmberZNet beyond v9.0.2 that includes proper input validation for Level Control Move commands to prevent the divide-by-zero condition.

Fix this in Emberznet Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing5.0 h
  • Review / QA3.0 h
17.0 hours of engineering $2,970
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,752.

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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-2026-47152 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
  • No spam, self-promotion, credentials, or personal data