Zw090 AOperating system · Aeotec

CVE-2020-9061

MEDIUM · 6.5 CVSS v3.1 Published 2022-01-10
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
70/100
Remediation priority · Elevated
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
Z-Wave devices using Silicon Labs 500 and 700 series chipsets, including but not likely limited to the SiLabs UZB-7 version 7.00, ZooZ ZST10 version 6.04, Aeon Labs ZW090-A version 3.95, and Samsung STH-ETH-200 version 6.04, are susceptible to denial of service via malformed routing messages.

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

Z-Wave devices using Silicon Labs 500 and 700 series chipsets are vulnerable to denial of service attacks via malformed routing messages. The vulnerability allows attackers to send specially crafted routing packets that can crash or freeze affected Z-Wave devices, disrupting mesh network communications.

MitigationApply firmware updates from Silicon Labs and device manufacturers (SiLabs, ZooZ, Aeon Labs, Samsung) once available. Network segmentation can limit exposure to unauthenticated Z-Wave network traffic.

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
Zw090 AOperating system
Affected:= 3.95
Sth Eth 200Operating system
Affected:= 6.04
Uzb 7Operating system
Affected:= 7.00
Zst10Operating system
Affected:= 6.04
500 Series FirmwareOperating system
Affected:all versions
700 Series FirmwareOperating system
Affected:all versions

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
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/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 the Z-Wave device model
    Locate the device model number on the physical device label, packaging, or in the device management interface/app
    Affected if The device is Aeotec Zw090 A, Samsung Sth Eth 200, Silabs Uzb 7, or Zooz Zst10
  2. Check the installed firmware version
    Access the device through its web interface, mobile app, or Z-Wave controller to view the firmware version information
    Affected if Firmware version is 3.95 (Aeotec), 6.04 (Samsung/Zooz), or 7.00 (Silabs Uzb 7)
  3. Verify the chipset series
    Check the device specifications, chipset documentation, or contact the manufacturer to determine if the device uses Silicon Labs 500 or 700 series chipset
    Affected if Device uses Silicon Labs 500 Series or 700 Series chipset on any firmware version
  4. Determine network exposure
    Check if the Z-Wave device is on an active mesh network and accessible to network traffic from untrusted sources
    Affected if The device is connected to a Z-Wave network that accepts routing packets from potentially untrusted devices

A device is affected if it is one of the listed models at the specified versions OR uses Silicon Labs 500/700 series chipset on any firmware version and is on an active Z-Wave network.

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

Apply firmware updates from Silicon Labs and device manufacturers (SiLabs, ZooZ, Aeon Labs, Samsung) once available. Network segmentation can limit exposure to unauthenticated Z-Wave network traffic.

Fix this in Zw090 A Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing10.0 h
  • Review / QA4.0 h
32.0 hours of engineering $5,580
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Scan for this in your stack

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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-2020-9061 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