Vulnerability in Csa-Iot Matter
CVE-2025-56365
A reachable assertion vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.0, in the interaction model command processing logic. When an InvokeCommandRequest is sent to a nonexistent endpoint and cluster (e.g., 0x34), the code incorrectly treats the endpoint as valid due to missing checks in CodegenDataModelProvider::Invoke. This causes a VerifyOrDie failure in ProcessCommandDataIB and results in a crash (SIGABRT). The issue has been acknowledged and fixed in a later revision (PR #37207).
EPSS: 0.006 (46.8th 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
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Issue Tracking)
- cve@mitre.org (Patch)
- cve@mitre.org (Product)
Frequently asked questions
- What is CVE-2025-56365?
- CVE-2025-56365 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-2025-56365?
- High severity. CVSS v3 base score is 7.5 out of 10.