CVE-2025-56362CWE-617

CVE-2025-56362

Medium · published July 15, 2026

CVSS v3.1
5.7
EPSS
0%
Percentile
19.1
In the wild
Unconfirmed
What it is

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).

The record
Technical detail
CVSS v3.1
5.7 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00277 · 19.1th percentile
Weakness
CWE-617 · Reachable Assertion
Published
2026-07-15T03:17Z
Affected products (2)
ProductVersionsFixed in
csa-iot/matterall versions—
csa-iot/matterall versions—
References (3)
https://github.com/project-chip/connectedhomeip/ · [email protected]https://github.com/project-chip/connectedhomeip/issues/38618 · [email protected]https://github.com/project-chip/connectedhomeip/issues/38618 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 14 JUL 00:00Z
    A reachable assertion vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.2, specifically within the Level Control cluster's periodic server…
    cvelistv5