CVE-2025-56361 Denial of service in n/a
Remote attackers can cause a denial of service in Matter devices by triggering an assertion failure in the Level Control cluster logic.
- 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-2025-56361?
CVE-2025-56361 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) 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.
Weakness: CWE-617
Which versions are affected by CVE-2025-56361?
It affects 1 product.
Products include Csa-Iot Matter.
How do I fix CVE-2025-56361?
No fix has been published for CVE-2025-56361 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-2025-56361 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-56361 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-f6px-4w9c-rj4f.