CVE-2025-56364

A use of uninitialized value vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.0, where the `GetDestinationGroupId().Value()` method is called without first checking whether a value exists. This leads to a crash when an InvokeCommand is sent without initializing the destination group ID. The issue affects all versions before commit 0360cc3 (Dec 5, 2024) and leads to denial of service through SIGABRT. It is fixed by adding a .HasValue() check before access.

• CWE-457

• https://github.com/project-chip/connectedhomeip/Product
• https://github.com/project-chip/connectedhomeip/issues/36711Issue Tracking
• https://github.com/project-chip/connectedhomeip/pull/36729Patch
• https://github.com/project-chip/connectedhomeip/issues/36711Issue Tracking

Published

Jul 14, 2026

Last Modified

Jul 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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