{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "70c9b0c07748"
            }
          ],
          "repo": "https://github.com/trezor/trezor-firmware",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "cisa-cg",
    "cwe_ids": [
      "CWE-358"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65058.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "70c9b0c"
          },
          {
            "fixed": "70c9b0c"
          },
          {
            "fixed": "70c9b0c"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Trezor Safe 3, Safe 5, and Safe 7 firmware contains a confirmation-binding flaw in the Ethereum sign_tx / sign_tx_eip1559 flow. For contract interactions, the device confirms only the initial calldata chunk while the signature commits to the full streamed calldata. An attacker could present calldata to a victim then supply a different tail that changes the signed transaction. Fixed in 70c9b0c.",
  "id": "CVE-2026-65058",
  "modified": "2026-08-12T03:51:34.210394290Z",
  "published": "2026-07-21T20:13:00.560Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65058.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-65058"
    },
    {
      "type": "ADVISORY",
      "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-202-02.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-65058"
    },
    {
      "type": "FIX",
      "url": "https://github.com/trezor/trezor-firmware/commit/70c9b0c07748"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Trezor Safe improper security check in on-device display"
}