CVE-2023-51395
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 · uneditedThe vulnerability described by CVE-2023-0972 has been additionally discovered in Silicon Labs Z-Wave end devices. This vulnerability may allow an unauthenticated attacker within Z-Wave range to overflow a stack buffer, leading to arbitrary code execution.
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 confidenceA stack buffer overflow vulnerability in Silicon Labs Z-Wave end devices allows an unauthenticated attacker within Z-Wave radio range to overflow a stack buffer and achieve arbitrary code execution, leading to full device compromise.
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
- 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 checksWork through these to decide whether this CVE applies to you.
-
Identify Silicon Labs Z-Wave hardware in useReview device documentation, hardware labels, or management interface to confirm the device contains a Silicon Labs Z-Wave chip, module, or stack. Check the product datasheet or specifications for 'Silicon Labs' and 'Z-Wave' references.Affected if The device does not use Silicon Labs Z-Wave components, then it is not affected.
-
Locate the Z-Wave firmware versionAccess the device management interface (web UI, serial console, or CLI) and navigate to the Z-Wave or firmware information section. Look for a firmware version field associated with the Z-Wave radio or stack.Affected if The firmware version cannot be determined, treat the device as potentially affected.
-
Compare firmware version against vendor advisoriesLocate the Silicon Labs security advisory for CVE-2023-51395 on the Silicon Labs support website. Compare your identified firmware version against the listed affected version ranges provided in the advisory.Affected if Your installed version falls within the affected version range listed in the vendor advisory, then the device is vulnerable.
-
Assess Z-Wave radio exposureDetermine the physical location and radio propagation environment of the Z-Wave device. Identify whether unauthorized individuals could position themselves within typical Z-Wave RF range (up to 100 meters outdoors, 40 meters indoors).Affected if The device is deployed in an accessible or uncontrolled RF environment, the vulnerability is potentially exploitable by nearby attackers.
-
Check for recent Z-Wave firmware updatesConsult the device manufacturer or Silicon Labs release notes to determine if a firmware patch addressing this CVE has been released. Note the version number of the patched release.Affected if A patch is available and your current version is older than the patched version, the device remains vulnerable.
The device is affected if it uses Silicon Labs Z-Wave hardware and runs a firmware version that falls within the affected range published in the Silicon Labs security advisory for CVE-2023-51395.
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 dataApply vendor-supplied firmware patches when available; until then, minimize device exposure by restricting physical access to Z-Wave network perimeter and monitoring for unauthorized devices within range.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,888.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-51395 — 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-2023-51395 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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.
- 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