{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "4.4.6"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "59d2160fe448b13730a91c0f019a8b4c53c43eb2"
            }
          ],
          "repo": "https://github.com/siliconlabs/gecko_sdk",
          "type": "GIT"
        }
      ]
    },
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2025.6.1"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "4c4c7151c8a5953a6afc1e926c0bbb9e4e1893de"
            }
          ],
          "repo": "https://github.com/siliconlabs/simplicity_sdk",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Silabs",
    "cwe_ids": [
      "CWE-229"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/7xxx/CVE-2025-7964.json"
  },
  "details": "After receiving a \n\nmalformed 802.15.4 MAC Data Request\n\n 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.",
  "id": "CVE-2025-7964",
  "modified": "2026-07-15T01:49:07.934765679Z",
  "published": "2026-01-30T15:02:53.825Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/7xxx/CVE-2025-7964.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-7964"
    },
    {
      "type": "REPORT",
      "url": "https://community.silabs.com/068Vm00000dspiL"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/SiliconLabs/gecko_sdk"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/SiliconLabs/simplicity_sdk"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Zigbee Router Denial of Service"
}