CVE-2026-89410 PUBLISHED

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

Assigner: Silabs
Reserved: 11.09.2026 Published: 22.10.2026 Updated: 22.10.2026

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

CVSS Vector: 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
CVSS Score: 5.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Physical	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Vendor	Silicon Labs
Product	Z-Wave SDK
Versions	Default: unaffected affected from 0 to 8.1.1 (incl.)

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