{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "0"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0"
            }
          ],
          "repo": "https://github.com/siliconlabs/simplicity_sdk",
          "type": "GIT"
        }
      ],
      "versions": [
        "0"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Silabs",
    "cwe_ids": [
      "CWE-336"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6924.json"
  },
  "details": "A bug in the entropy initialization for SiWx917 causes the DRBG to use a predictable seed. As such, all random numbers generated in the Matter code use the same stream of numbers. This vulnerability was discovered after the impacted repository was already deprecated.",
  "id": "CVE-2026-6924",
  "modified": "2026-10-08T02:30:54.218620362Z",
  "published": "2026-07-23T21:05:22.113Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6924.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6924"
    },
    {
      "type": "REPORT",
      "url": "https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/a45Vm0000009SzZIAU?operationContext=S1"
    },
    {
      "type": "FIX",
      "url": "https://github.com/SiliconLabs/matter/tree/release_2.3.1-1.3"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/SiliconLabs/simplicity_sdk"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Weak entropy initialization in Silicon Labs Matter SiWx917 TinyCrypt path"
}