TI-2025-35313 Aliases CVE-2025-56362 GHSA-qj9w-vfqp-8pcv

A reachable assertion vulnerability exists in the Matter SDK (connectedhomeip) before…

MEDIUM 59CWE-617Published 2026-07-14 · Updated 2026-10-05

Key facts

Attack vector: Adjacent network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-617.

Summary

A reachable assertion vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.2, specifically within the Level Control cluster's periodic server tick logic. When a MoveToLevel command is sent and immediately followed by a write of OperationMode=2 (in the Pump Configuration and Control cluster), the server tick function violates the assertion `currentLevel < maxLevel`, resulting in a crash. This can be exploited remotely without authentication to cause denial of service. Affected versions include 1.3 and 1.4 (commit ab3d5ae).

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00277 20th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:csa-iot:matter:1.3.0.0:::::::*	1.3.0.0	Vulnerable	Csa-iot
cpe:2.3:a:csa-iot:matter:1.4.0.0:::::::*	1.4.0.0	Vulnerable	Csa-iot

cpe:2.3:a:csa-iot:matter:1.3.0.0:*:*:*:*:*:*:* Versions 1.3.0.0 Vulnerable ·Csa-iot
cpe:2.3:a:csa-iot:matter:1.4.0.0:*:*:*:*:*:*:* Versions 1.4.0.0 Vulnerable ·Csa-iot

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-56362
2026-10-03 Alias added: GHSA-qj9w-vfqp-8pcv
2026-10-05 CVSS score changed · CISA ADP
2026-10-05 CISA SSVC decision points changed
2026-10-05 Priority changed: HIGH → MEDIUM
2026-10-05 CVSS score added · NVD

References

Exploit 1

https://github.com/project-chip/connectedhomeip/issues/38618

Other 1

https://github.com/project-chip/connectedhomeip/

TI-2025-35316 A reachable assertion vulnerability exists in the Matter SDK (connectedhomeip) before… CVSS 3.1MEDIUM 5.7
TI-2025-35315 A use of uninitialized value vulnerability exists in the Matter SDK (connectedhomeip)… CVSS 3.1MEDIUM 5.7
TI-2025-35314 A null pointer dereference vulnerability exists in the Matter SDK (connectedhomeip)… CVSS 3.1MEDIUM 5.7
TI-2025-35312 A reachable assertion vulnerability exists in the Matter SDK (connectedhomeip) 1.3 thru… CVSS 3.1MEDIUM 5.7
TI-2024-03091 Session establishment lock-up during replay of CASE Sigma1 messages CVSS 3.1MEDIUM 6.5
TI-2024-03219 In-Fabric Matter Cluster Attribute Disclosure CVSS 3.1LOW 3.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences