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
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).
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-56365
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2025-563650.36% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 29% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2025-56365 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for A reachable assertion
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-67303: FreeRDP before 3.29.0 contains a reachable assertion (WINPR_ASSERT(OutputBufferLength == Bytes…nvd · 2026-08-01
- mediumCVE-2026-66754: Rouille 0.1.6 through 3.6.2 contains a reachable assertion vulnerability in the Request::remov…nvd · 2026-07-28
- highCVE-2026-45815: Reachable Assertion vulnerability in Apache NimBLE. A specially crafted ATT Read Multiple Vari…nvd · 2026-07-24
- mediumCVE-2026-63140: Reachable Assertion (CWE-617) in Elasticsearch can lead to denial of service via Input Data Ma…nvd · 2026-07-21
- highCVE-2025-56362: A reachable assertion vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.2, s…nvd · 2026-07-14
- highCVE-2025-56361: A reachable assertion vulnerability exists in the Matter SDK (connectedhomeip) 1.3 thru 1.4, s…nvd · 2026-07-14
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