Security advisory

{
  "id": "98926c2975033a7d6f90532e9d6fd02a17ab3d911fe48ef50d8d11eac02b4988",
  "url": "https://osv.dev/vulnerability/CVE-2025-56362",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2025-56362",
    "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).",
    "evidence": "osv:CVE-2025-56362",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-56362",
      "aliases": [
        "CVE-2025-56362"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/project-chip/connectedhomeip",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5bb5c9e23d532cea40476fc0bd1d3008522792ba"
                },
                {
                  "fixed": "871b4347b3b068dc161d6a02f867a0335cff13ed"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.4.2"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "cpe": "cpe:2.3:a:csa-iot:matter:1.3.0.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.3.0.0"
                      },
                      {
                        "last_affected": "1.3.0.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:csa-iot:matter:1.4.0.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.4.0.0"
                      },
                      {
                        "last_affected": "1.4.0.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.3.0.0",
            "1.4.0.0",
            "v1.3.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-56362.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.935525644Z",
      "provider": "osv",
      "references": [
        "https://github.com/project-chip/connectedhomeip/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/56xxx/CVE-2025-56362.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-56362",
        "https://github.com/project-chip/connectedhomeip/issues/38618"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/56xxx/CVE-2025-56362.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-56362",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 519302,
  "published_at": "2026-07-14T00:00:00+00:00"
}