CVE-2026-89410

Out-of-bounds read in Z-Wave NCP SPI Handler

State: Published
Severity: 5.1 Medium
Published: Oct 22, 2026
Updated: Oct 23, 2026
Reserved: Sep 11, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.1 Medium	CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	Silabs

Weaknesses

CWE-1285 Improper Validation of Specified Index, Position, or Offset in Input

Affected Products

Product	Versions
Z-Wave SDKSilicon Labs	8.1.1 and earlierAffected

References

https://github.com/SiliconLabsSoftware/docs-security-advisories/blob/main/Advisories/500-599/A-00000592.mdvendor-advisory

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