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Z\/ip Gateway SdkApplication · Silabs

CVE-2023-0971

HIGH · 8.8 CVSS v3.1 Published 2023-06-21
Fix available
A fix is available. Upgrade to after 7.18.01 or later.
See remediation →
93/100
Remediation priority · Urgent
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
A logic error in SiLabs Z/IP Gateway SDK 7.18.02 and earlier allows authentication to be bypassed, remote administration of Z-Wave controllers, and S0/S2 encryption keys to be recovered.

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 logic error in SiLabs Z/IP Gateway SDK 7.18.02 and earlier allows authentication to be bypassed, enabling remote administration of Z-Wave controllers and recovery of S0/S2 encryption keys used to secure Z-Wave mesh networks.

MitigationUpgrade Z/IP Gateway SDK to a version newer than 7.18.02 to remediate the authentication bypass logic error; no practical workarounds exist for this core security flaw.

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
Z\/ip Gateway SdkApplication
Affected:<= 7.18.01

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
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/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 checks

Work through these to decide whether this CVE applies to you.

  1. Confirm Z/IP Gateway is installed
    Locate the Z/IP Gateway installation by checking common installation directories (e.g., /usr/local/silabs, C:\Program Files\Silicon Laboratories) or search for executable files named 'zipgateway' or 'Z/IP Gateway' in the system.
    Affected if Z/IP Gateway software is found on the system
  2. Retrieve the installed version number
    Run 'zipgateway -v' or 'zipgateway --version' from the command line, or check the version information in the Gateway's web interface (usually accessible on port 8080 or 8443). Alternative: inspect the binary file properties if command-line access is unavailable.
    Affected if The version cannot be determined or returns a version <= 7.18.02
  3. Compare version against affected range
    If a version number is obtained, compare it numerically against 7.18.02 (or 7.18.01 per the affected products list). Versions 7.18.02, 7.18.01, and earlier are considered vulnerable.
    Affected if Installed version is 7.18.02 or earlier (7.18.02, 7.18.01, 7.18.00, etc.)
  4. Verify remote administration is accessible
    Check if the Z/IP Gateway web administration interface is exposed to the network by accessing the configured IP address on ports 8080 (HTTP) or 8443 (HTTPS). Attempt an unauthenticated request to the management endpoints.
    Affected if Remote administration interface is accessible without authentication and the version is <= 7.18.02

A system is affected if Z/IP Gateway SDK version 7.18.02 or earlier is installed and the remote administration interface is exposed, as this version range contains the authentication bypass logic error enabling unauthorized access.

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
Upgrade available Upgrade to a release after 7.18.01
Interim mitigation

Upgrade Z/IP Gateway SDK to a version newer than 7.18.02 to remediate the authentication bypass logic error; no practical workarounds exist for this core security flaw.

Recommended fix High confidence

Z/IP Gateway SDK 7.18.02 or later

  1. 1. Identify the current installed version of SiLabs Z/IP Gateway SDK by checking the SDK documentation or system inventory
  2. 2. Download the fixed version of Z/IP Gateway SDK from the official Silicon Labs support portal (siliconlabs.lightning.force.com)
  3. 3. Review release notes for version 7.18.02 or later to confirm security fixes address CVE-2023-0971
  4. 4. Create a backup of current SDK configuration and any custom implementations
  5. 5. Install the upgraded Z/IP Gateway SDK version 7.18.02 or later
  6. 6. Verify the installation was successful and the SDK is functioning correctly
  7. 7. Test Z-Wave controller functionality and confirm authentication mechanisms are working properly
Caveat Review release notes for any API changes or configuration updates required when upgrading from versions <= 7.18.01

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

Fix this in Z\/ip Gateway Sdk Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing8.0 h
  • Review / QA4.0 h
24.0 hours of engineering $4,160
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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-2023-0971 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