What is CVE-2025-56364?

CVE-2025-56364 is a medium-severity vulnerability in Csa-Iot Matter, classified under CWE-457. CVSS score: 5.7/10. Published 2026-07-14.

How severe is CVE-2025-56364?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Vulnerability in Csa-Iot Matter

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.

Published 2026-07-14 · last modified 2026-10-13.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (9.1th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 9.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.002 · change: -0.004

Affected products

Csa-Iot Matter

Weakness classification (CWE)

CWE-457

References

github.com/project-chip/connectedhomeip/issues/36711 (Issue Tracking)
github.com/project-chip/connectedhomeip/pull/36729 (Patch)
github.com/project-chip/connectedhomeip/ (Product)

Frequently asked questions

What is CVE-2025-56364?: CVE-2025-56364 is a medium-severity vulnerability in Csa-Iot Matter, classified under CWE-457. CVSS score: 5.7/10. Published 2026-07-14.
How severe is CVE-2025-56364?: Medium severity. CVSS v3 base score is 5.7 out of 10.