CVE-2026-102692

{
  "etk_id": "ETK-2026-1797",
  "cve_id": "CVE-2026-102692",
  "display_id": "CVE-2026-102692",
  "ghsa_id": "GHSA-8365-gj33-rgpf",
  "euvd_id": "EUVD-2026-102945",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Integer overflow in RIOT nanocoap Block2 handling",
  "summary": "RIOT releases before 2026.07 are affected by an integer overflow in nanocoap processing of CoAP Block2 option values on 32-bit targets. A remote unauthenticated CoAP client may cause out-of-bounds memory access, denial of service, or memory corruption by sending an oversized Block2 value.",
  "mitigation": "Upgrade RIOT to version 2026.07 or later. Until upgrades are complete, restrict CoAP access to trusted clients and networks.",
  "vendor": "RIOT-OS",
  "product": "RIOT",
  "affected": [
    {
      "affected_notes": [
        "<= master (commit aeeae69e)"
      ],
      "affected_ranges": [],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "RIOT",
      "purl": null
    }
  ],
  "cwes": [
    190
  ],
  "cvss_score": 9.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
  "epss_score": 0.0035,
  "epss_percentile": 0.2724,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 71.83979121666667,
  "t0_at": "2026-10-16T16:48:35.776000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-16T16:48:35.776000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-16T16:48:35.776000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-102692"
    }
  }
}