Zigbee Router Denial of Service

{
  "id": "5d3b8f3de4a2f4d852f5f110cb68920521e9c8caaab9fc1d7492d98aee312dba",
  "url": "https://osv.dev/vulnerability/CVE-2025-7964",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Zigbee Router Denial of Service",
    "summary": "After receiving a malformed 802.15.4 MAC Data Request the Zigbee Coordinator sends a ‘network leave’ request to Zigbee router resulting in the Zigbee Router getting stuck in a non-rejoinable state. If a suitable parent is not available, the end devices will be unable to rejoin. A manual recommissioning is required to recover the Zigbee Router.",
    "evidence": "osv:CVE-2025-7964",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2025-7964",
      "aliases": [
        "CVE-2025-7964"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/siliconlabs/gecko_sdk",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "59d2160fe448b13730a91c0f019a8b4c53c43eb2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "4.4.6"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.4.6",
            "v4.4.5",
            "v4.4.4",
            "v4.4.3",
            "v4.4.2",
            "v4.4.1",
            "v4.3.2",
            "v4.4.0",
            "v4.3.1",
            "v4.2.3",
            "v4.3.0",
            "v4.2.2",
            "v4.2.1",
            "v4.2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-7964.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/siliconlabs/simplicity_sdk",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "4c4c7151c8a5953a6afc1e926c0bbb9e4e1893de"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2025.6.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2025.6.1",
            "v2025.6.0",
            "v2024.12.2",
            "v2024.12.1-0",
            "v2024.12.0",
            "v2024.6.2",
            "v2024.6.1-0",
            "v2024.6.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-7964.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:46.493820572Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/7xxx/CVE-2025-7964.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-7964",
        "https://community.silabs.com/068Vm00000dspiL",
        "https://github.com/SiliconLabs/gecko_sdk",
        "https://github.com/SiliconLabs/simplicity_sdk"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-229"
        ],
        "cna_assigner": "Silabs",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/7xxx/CVE-2025-7964.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-7964",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 514613,
  "published_at": "2026-01-30T15:02:53.825+00:00"
}