CVE-2026-74220

{
  "etk_id": "ETK-2026-26",
  "cve_id": "CVE-2026-74220",
  "display_id": "CVE-2026-74220",
  "ghsa_id": "GHSA-63gj-h865-3h3j",
  "euvd_id": "EUVD-2026-89433",
  "status": "published",
  "anchor_state": "anchored",
  "title": "NFS reply buffer overflow in U-Boot",
  "summary": "U-Boot versions before 2026.10-rc5 improperly handle NFS READ reply lengths. An attacker controlling an NFS server used by the target can trigger memory corruption or crash the bootloader with a malformed reply.",
  "mitigation": "Upgrade U-Boot to version 2026.10-rc5 or later. Until upgraded, do not boot from or otherwise use untrusted NFS servers.",
  "vendor": "u-boot",
  "product": "u-boot",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 2026.10-rc5"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "2026.10-rc5"
      ],
      "package_name": "u-boot",
      "purl": null
    }
  ],
  "cwes": [
    195
  ],
  "cvss_score": 8.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N",
  "epss_score": 0.0034,
  "epss_percentile": 0.2581,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 18.944398966666668,
  "t0_at": "2026-09-29T21:29:22.617000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-09-29T21:29:22.617000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-09-29T21:29:22.617000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-74220"
    }
  }
}