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TI-2026-79282 Aliases CVE-2026-89409GHSA-w9rg-jqqv-77wp

Missing checks in Z-Wave SDK can remove nodes from the network

Priority LOW 24CWE-940Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Silicon Labs Z-Wave SDK 8.1.1 and earlier for 700/800 series devices and 6.85.02 and earlier for 500 series devices are affected. Missing checks in the ZWAVE_CMD_NODES_EXIST handler let messages remove nodes from the network (CWE-940). These messages must come from a device that has already joined the network.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

In Z-Wave SDK 8.1.1 and earlier (for 700/800 series devices) and 6.85.02 and earlier (for 500 series devices), missing checks in the ZWAVE_CMD_NODES_EXIST handler can result in nodes being removed from the network. These messages must come from a device that has already joined the network.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00269 19th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
silabs.comZ-Wave SDK7.0.0 – 8.1.1; up to 6.85.02—No fix listedCNA
  • Z-Wave SDK Vendorsilabs.com Affected 7.0.0 – 8.1.1; up to 6.85.02 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Z-Wave SDK.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-22 Threatist record created from CVE-2026-89409
  2. 2026-10-22 Alias added: GHSA-w9rg-jqqv-77wp
  3. 2026-10-22 CISA SSVC decision points changed

References

Advisory 1

  • TI-2023-24288 Heap-based buffer overflow in silabs.com Gecko Platform CVSS 3.1CRITICAL 10.0
  • TI-2023-14952 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
  • TI-2023-12925 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
  • TI-2023-12476 Heap-based buffer overflow in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
  • TI-2022-08744 Heap-based buffer overflow in MicriumOS HTTP Server allows potential remote code execution CVSS 3.1CRITICAL 9.8
  • TI-2023-12937 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
See all 178 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences