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  4. CVE 2026 89410 out of bounds read in z wave ncp spi handler
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Back to active CVEs
Medium · CVSS 5.1CVE-2026-89410

Out-of-bounds read in Z-Wave NCP SPI HandlerCVE-2026-89410

Answer in brief

CVE-2026-89410 records a Medium severity (CVSS 5.1) vulnerability in Out-of-bounds read in Z-Wave NCP SPI Handler. The current sources do not mark it as known exploited. The current feed maps Silicon Labs/Z-Wave SDK (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 22, 2026Updated Oct 22, 2026Source checked Oct 22, 2026First seen by HOL Oct 22, 2026Material review Oct 22, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.1
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 5.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Silicon Labs/Z-Wave SDK (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Silicon Labs/Z-Wave SDKgeneric>=0 <=8.1.1Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Silicon Labs/Z-Wave SDK.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 22, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 22, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 22, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
Upstream source description

In Z-Wave SDK 8.1.1 and earlier, a malformed NCP SPI command can trigger out-of-bounds reads that leak sensitive information.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Unvalidated ZWAVE_CMD_NODES_EXIST May Cause Deletion of End Nodes​Same silicon labs/z-wave sdk package

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-1285
Source
CVE List V5
Source checked
Oct 22, 2026
References
1 linked source
Open source record