Description
A reachable assertion vulnerability exists in the Matter SDK (connectedhomeip) 1.3 thru 1.4, specifically within the Level Control cluster's server tick logic (`emberAfLevelControlClusterServerTickCallback`). When a MoveToLevel command is executed and followed by a conflicting write to the OperationMode attribute (in the Pump Configuration and Control cluster), an invariant check (`minLevel < currentLevel`) fails and causes the device to abort. This leads to a denial of service condition. The issue is confirmed in SDK versions 1.3 and 1.4 (commit ab3d5ae), and is triggered remotely without authentication.
Metrics
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- https://github.com/project-chip/connectedhomeip/Product
- https://github.com/project-chip/connectedhomeip/issues/38619Exploit, Issue Tracking
- https://github.com/project-chip/connectedhomeip/issues/38619Exploit, Issue Tracking
Timeline
- Published
- Jul 14, 2026
- Last modified
- Oct 13, 2026
- NVD status
- Analyzed