CVE-2026-54912

{
  "etk_id": "ETK-2026-3653",
  "cve_id": "CVE-2026-54912",
  "display_id": "CVE-2026-54912",
  "ghsa_id": "GHSA-jjv3-x3jf-cg49",
  "euvd_id": "EUVD-2026-117617",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Heap buffer overflow in WAMR fast interpreter loader",
  "summary": "WebAssembly Micro Runtime versions before 2.4.5 can write beyond a compiled-code heap buffer while loading a crafted WebAssembly module. An attacker able to supply a module to a host using the fast interpreter may crash the host process and potentially corrupt host heap memory before guest code runs.",
  "mitigation": "Upgrade wasm-micro-runtime to version 2.4.5 or later. If upgrading cannot happen immediately, disable the fast interpreter by building without WAMR_BUILD_FAST_INTERP=1.",
  "vendor": "bytecodealliance",
  "product": "wasm-micro-runtime",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<=2.4.4"
      ],
      "ecosystem": "c/c++",
      "fixed_versions": [
        "2.4.5"
      ],
      "package_name": "wasm-micro-runtime",
      "purl": null
    }
  ],
  "cwes": [
    787
  ],
  "cvss_score": 8.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 15.89162425,
  "t0_at": "2026-11-05T17:29:18.708000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-05T18:02:10.881289+00:00",
      "days": 0.022826079733796297,
      "is_lower_bound": false,
      "measured_at": "2026-11-05T17:29:18.708000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-05T17:29:18.708000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-05T17:29:18.708000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-54912"
    }
  }
}