CVE-2025-56362: n/a
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).
AI Analysis
Technical Summary
This vulnerability exists in the Matter SDK (connectedhomeip) versions before 1.4.2, specifically in the Level Control cluster's periodic server tick function. When a MoveToLevel command is sent and immediately followed by a write operation setting OperationMode=2 in the Pump Configuration and Control cluster, the server tick function violates the assertion `currentLevel < maxLevel`. This assertion failure causes the server to crash, enabling a remote unauthenticated attacker to cause a denial of service condition.
Potential Impact
An unauthenticated remote attacker can cause the Matter SDK server to crash by triggering the assertion failure, resulting in denial of service. There is no indication of code execution or data compromise, only service disruption.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid sending the specific sequence of commands (MoveToLevel followed immediately by OperationMode=2 write) that triggers the assertion failure.
CVE-2025-56362: n/a
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).
CVSS v3.1
Score 7.5high
Affected software
pkg:github/project-chip/connectedhomeipRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability exists in the Matter SDK (connectedhomeip) versions before 1.4.2, specifically in the Level Control cluster's periodic server tick function. When a MoveToLevel command is sent and immediately followed by a write operation setting OperationMode=2 in the Pump Configuration and Control cluster, the server tick function violates the assertion `currentLevel < maxLevel`. This assertion failure causes the server to crash, enabling a remote unauthenticated attacker to cause a denial of service condition.
Potential Impact
An unauthenticated remote attacker can cause the Matter SDK server to crash by triggering the assertion failure, resulting in denial of service. There is no indication of code execution or data compromise, only service disruption.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid sending the specific sequence of commands (MoveToLevel followed immediately by OperationMode=2 write) that triggers the assertion failure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2025-08-16T00:00:00.000Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a56b92768715ace4351a775
Added to database: 07/14/2026, 22:33:11 UTC
Last enriched: 07/14/2026, 22:48:30 UTC
Last updated: 08/28/2026, 02:41:37 UTC
Views: 60
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