Silicon Labs CPC can leak information in full duplex SPI

{
  "id": "3d46d4100c641fc15fb9202287c5e88f1ccd61fa6bf02037cb3aafbda0885747",
  "url": "https://osv.dev/vulnerability/CVE-2024-12975",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Silicon Labs CPC can leak information in full duplex SPI",
    "summary": "A buffer overread can occur in the CPC application when operating in full duplex SPI upon receiving an invalid packet over the SPI interface.",
    "evidence": "osv:CVE-2024-12975",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2024-12975",
      "aliases": [
        "CVE-2024-12975"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/siliconlabs/simplicity_sdk",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "da661283f301b53eec04d1016009e60bc7e34a1f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2024.12.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "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-2024-12975.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:46.140493690Z",
      "provider": "osv",
      "references": [
        "https://community.silabs.com/069Vm00000LWXMeIAP",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/12xxx/CVE-2024-12975.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-12975",
        "https://github.com/SiliconLabs/simplicity_sdk",
        "https://github.com/SiliconLabs/simplicity_sdk/releases"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-126"
        ],
        "cna_assigner": "Silabs",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/12xxx/CVE-2024-12975.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-12975",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 514151,
  "published_at": "2025-03-07T16:41:10.424+00:00"
}