# CVE-2025-56365

> As of 2026-07-15, CVE-2025-56365 is a HIGH-severity vulnerability, CVSS v3.1 7.5. No Threadlinqs-tracked threat campaign has been attributed to CVE-2025-56365 as of 2026-07-15; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-07-15

## What is 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).

The record classifies CVE-2025-56365 under weakness class [CWE-617](https://intel.threadlinqs.com/cwe/CWE-617). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on availability. The identifier was first published 83 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.5 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 3.8/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-07-14, last modified 2026-07-15

## Is CVE-2025-56365 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

## Affected products and versions

No affected-product or package list has been recorded for CVE-2025-56365 in the tracked sources. The vendor advisory and the references below are the authoritative statement of what is affected.

## How to fix CVE-2025-56365

No vendor patch reference has been recorded for CVE-2025-56365 in the tracked sources. Follow the references below for a fix, and treat any affected deployment as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2025-56365

No threat campaign in the Threadlinqs corpus currently references CVE-2025-56365, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org. Last verified by Threadlinqs on 2026-07-15.

**Other references**

- [github.com](https://github.com/project-chip/connectedhomeip/issues/37184)
- [github.com (37207)](https://github.com/project-chip/connectedhomeip/pull/37207)
- [github.com (connectedhomeip)](https://github.com/project-chip/connectedhomeip/)

Canonical: https://intel.threadlinqs.com/cve/CVE-2025-56365
Full detection coverage and IOCs for threats exploiting CVE-2025-56365 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp