CVE-2025-56362 Denial of service in n/a
A remote unauthenticated attacker can crash Matter devices by sending specific commands that trigger an assertion failure in the Level Control cluster.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-56362?
CVE-2025-56362 is a medium-severity denial of service vulnerability in n/a, published on 14 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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).
Weakness: CWE-617
Which versions are affected by CVE-2025-56362?
It affects 1 product.
Products include Csa-Iot Matter.
How do I fix CVE-2025-56362?
No fix has been published for CVE-2025-56362 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-56362 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-56362 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-qj9w-vfqp-8pcv.