Vulnerability in Csa-Iot Matter
CVE-2025-56362
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).
EPSS: 0.006 (45.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Csa-iot Matter — versions 1.3.0.0, 1.4.0.0
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Issue Tracking)
- cve@mitre.org (Product)
Frequently asked questions
- What is CVE-2025-56362?
- CVE-2025-56362 is a high-severity vulnerability in Csa-Iot Matter, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2026-07-14.
- How severe is CVE-2025-56362?
- High severity. CVSS v3 base score is 7.5 out of 10.