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.
CVE-2025-56364
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 0.0(none)
- EPSS
- 6.6%
- KEV
- Not listed
Published
July 14, 2026
Last Modified
July 15, 2026
Advisory Details (3)
Auto-updated Jul 15, 2026[BUG] one Use of Uninitialized Resource bug · Issue #36711 · project-chip/connectedhomeip · GitHub
https://github.com/project-chip/connectedhomeip/issues/36711Check whether we actually have a GroupId before trying to use it.
Fix merged in project-chip/connectedhomeip PR #36729 on 2024-12-05 — awaiting tagged release
https://github.com/project-chip/connectedhomeip/pull/36729GitHub - project-chip/connectedhomeip: Matter (formerly Project CHIP) creates more connections between more objects, simplifying development for manufacturers and increasing compatibility for consumers, guided by the Connectivity Standards Alliance. · GitHub
https://github.com/project-chip/connectedhomeip/Vendor Advisories for CVE-2025-56364(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 6× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 14:49 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
- 2026-07-14 23:23 UTCNVD update
- 2026-07-14 22:25 UTCEG score recompute
- 2026-07-14 22:25 UTCMITRE cvelistV5first tracked
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Dependency Blast Radius
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