CVE-2026-52788

{
  "etk_id": "ETK-2026-4404",
  "cve_id": "CVE-2026-52788",
  "display_id": "CVE-2026-52788",
  "ghsa_id": "GHSA-rf83-3rr5-v4mj",
  "euvd_id": "EUVD-2026-125533",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Out-of-bounds write in BACnet Stack BACnet/SC URL parser",
  "summary": "BACnet Stack releases before 1.4.5, 1.5.1, and 1.6.0 mishandle WebSocket URI lists in BACnet/SC Address Resolution ACK messages. An attacker able to supply a malformed ACK message to the affected parser may cause memory corruption through out-of-bounds writes.",
  "mitigation": "Upgrade BACnet Stack to 1.4.5, 1.5.1, or 1.6.0. Until upgraded, restrict exposure of BACnet/SC messaging to trusted peers.",
  "vendor": "bacnet-stack",
  "product": "bacnet-stack",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 1.6.0"
      ],
      "ecosystem": "other",
      "fixed_versions": [
        "1.4.5",
        "1.5.1",
        "1.6.0"
      ],
      "package_name": "bacnet-stack",
      "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:N/VI:L/VA:H/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 20.025387916666666,
  "t0_at": "2026-11-13T15:56:05.655000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-13T15:56:05.655000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-13T15:56:05.655000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-52788"
    }
  }
}