CVE-2026-16340

{
  "etk_id": "ETK-2026-974",
  "cve_id": "CVE-2026-16340",
  "display_id": "CVE-2026-16340",
  "ghsa_id": "GHSA-46h5-qc35-fvcx",
  "euvd_id": "EUVD-2026-94887",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Out-of-bounds write in IBM DataPower Gateway RFC2047 parser",
  "summary": "IBM DataPower Gateway 10.5.0.0–10.5.0.22, 10.6.0.0–10.6.0.10, 10.6.1–10.6.6, and 11.0.0.0–11.0.0.2 are affected. A remote attacker may execute code if an affected gateway processes specially formed RFC2047 encoded-word input.",
  "mitigation": "Restrict network access to DataPower services that process RFC2047-encoded input to trusted sources until IBM provides remediation guidance. Monitor IBM updates and apply the vendor-provided fix when released.",
  "vendor": "IBM",
  "product": "DataPower Gateway 10.6CD",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.6.1, <= 10.6.6"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "DataPower Gateway 10.6CD",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.6.0.0, <= 10.6.0.10"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "DataPower Gateway 10.6.0",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 11.0.0.0, <= 11.0.0.2"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "DataPower Gateway 11.0.0",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 10.5.0.0, <= 10.5.0.22"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "DataPower Gateway 10.5.0",
      "purl": null
    }
  ],
  "cwes": [
    787
  ],
  "cvss_score": 9.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": 0.0049,
  "epss_percentile": 0.4106,
  "epss_asof": "2026-10-21",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 78.82622618333333,
  "t0_at": "2026-10-08T13:09:18.739000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-08T14:38:32.207652+00:00",
      "days": 0.06196144273148148,
      "is_lower_bound": false,
      "measured_at": "2026-10-08T13:09:18.739000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-08T13:09:18.739000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-08T13:09:18.739000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-16340"
    }
  }
}