CVE-2025-56362: CSA-IoT Matter

Medium severity, CVSS 5.7. EPSS: 0.3% chance of exploitation in the next 30 days.

A reachable assertion vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.2, specifically within the Level Control cluster's periodic server tick logic. When a MoveToLevel command is sent and immediately followed by a write of OperationMode=2 (in the Pump Configuration and Control cluster), the server tick function violates the assertion `currentLevel < maxLevel`, resulting in a crash. This can be exploited remotely without authentication to cause denial of service. Affected versions include 1.3 and 1.4 (commit ab3d5ae).

Affected products

• CSA-IoT Matter: version 1.3.0.0 only; version 1.4.0.0 only

Published 2026-07-14. Last modified 2026-10-05.