How severe is CVE-2025-56365?

CVE-2025-56365 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-56365 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-56365?

CVE-2025-56365 affects Csa-iot Matter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-56365?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2025-56365 published?

CVE-2025-56365 was published on 2026-07-14 and last updated on 2026-07-17.

CVE-2025-56365

CVE-2025-56365 is a high-severity vulnerability in Csa-iot Matter with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-617.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-617
Affected product: Csa-iot Matter
Published: 2026-07-14
Last modified: 2026-07-17

Description

A reachable assertion vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.0, in the interaction model command processing logic. When an InvokeCommandRequest is sent to a nonexistent endpoint and cluster (e.g., 0x34), the code incorrectly treats the endpoint as valid due to missing checks in CodegenDataModelProvider::Invoke. This causes a VerifyOrDie failure in ProcessCommandDataIB and results in a crash (SIGABRT). The issue has been acknowledged and fixed in a later revision (PR #37207).

Frequently asked questions

What is CVE-2025-56365?: A reachable assertion vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.0, in the interaction model command processing logic. When an InvokeCommandRequest is sent to a nonexistent endpoint and cluster (e.g., 0x34), the code incorrectly treats the endpoint as valid due to missing checks in CodegenDataModelProvider::Invoke. This causes a VerifyOrDie failure in ProcessCommandDataIB and results in a crash (SIGABRT). The issue has been acknowledged and fixed in a later revision (PR #37207).
How severe is CVE-2025-56365?: CVE-2025-56365 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-56365 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-56365?: CVE-2025-56365 affects Csa-iot Matter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-56365?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2025-56365 published?: CVE-2025-56365 was published on 2026-07-14 and last updated on 2026-07-17.

References

Affected products (1)

cpe:2.3:a:csa-iot:matter:*:*:*:*:*:*:*:*

More vulnerabilities in Csa-iot Matter

CVE-2025-56364 — High (CVSS 7.5): A use of uninitialized value vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.0, where the…
CVE-2025-56363 — High (CVSS 7.5): A null pointer dereference vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.0, affecting the…
CVE-2025-56362 — High (CVSS 7.5): A reachable assertion vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.2, specifically within the…
CVE-2025-56361 — High (CVSS 7.5): A reachable assertion vulnerability exists in the Matter SDK (connectedhomeip) 1.3 thru 1.4, specifically within the…
CVE-2024-3297 — Medium (CVSS 6.5): An issue in the Certificate Authenticated Session Establishment (CASE) protocol for establishing secure sessions…
CVE-2024-3454 — Low (CVSS 3.5): An implementation issue in the Connectivity Standards Alliance Matter 1.2 protocol as used in the connectedhomeip SDK…

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