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).

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History

Thu, 23 Jul 2026 04:00:00 +0000

Type Values Removed Values Added
Title Remote Denial of Service via Reachable Assertion in Matter SDK Level Control Cluster

Fri, 17 Jul 2026 23:30:00 +0000

Type Values Removed Values Added
Title Reachable Assertion in Matter SDK Causing Remote Denial of Service

Thu, 16 Jul 2026 15:45:00 +0000

Type Values Removed Values Added
Title Reachable Assertion in Matter SDK Causing Remote Denial of Service

Wed, 15 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-617
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 14 Jul 2026 22:30:00 +0000

Type Values Removed Values Added
Description 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).
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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-15T14:23:19.667Z

Reserved: 2025-08-16T00:00:00.000Z

Link: CVE-2025-56362

cve-icon Vulnrichment

Updated: 2026-07-15T14:23:05.773Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-23T03:45:04Z

Weaknesses