{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "7.7.0"
              }
            ],
            "source": "DESCRIPTION"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "28a866966506f0c486ff96028cd23bb337d3ed75"
            }
          ],
          "repo": "https://github.com/keepkey/keepkey-firmware",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "mitre",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27892.json"
  },
  "details": "Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware before 7.7.0 allow a global buffer overflow via crafted messages. Flaws in cf_confirmExecTx() in ethereum_contracts.c can be used to reveal arbitrary microcontroller memory on the device screen or crash the device. With physical access to a PIN-unlocked device, attackers can extract the BIP39 mnemonic secret from the hardware wallet.",
  "id": "CVE-2023-27892",
  "modified": "2026-08-12T03:51:11.513439516Z",
  "published": "2023-05-02T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27892.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27892"
    },
    {
      "type": "FIX",
      "url": "https://github.com/keepkey/keepkey-firmware/pull/337"
    },
    {
      "type": "ARTICLE",
      "url": "https://blog.inhq.net/posts/keepkey-CVE-2023-27892/"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AC:H/AV:P/A:N/C:H/I:N/PR:H/S:U/UI:N",
      "type": "CVSS_V3"
    }
  ]
}