CVE-2026-124561

{
  "etk_id": "ETK-2026-3924",
  "cve_id": "CVE-2026-124561",
  "display_id": "CVE-2026-124561",
  "ghsa_id": "GHSA-2q4f-mcgv-82h7",
  "euvd_id": "EUVD-2026-119787",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Stack-based buffer overflow in D-Link DIR-878 HNAP handler",
  "summary": "D-Link DIR-878 devices running firmware 1.20B05 are affected by a stack-based buffer overflow in HNAP VLAN-settings handling. An unauthenticated remote attacker who can reach the device's HNAP management service may trigger the overflow, potentially causing service disruption.",
  "mitigation": "Replace unsupported DIR-878 devices with supported hardware. Until replacement, restrict HNAP and router management access to trusted administrative networks and prevent exposure from untrusted networks.",
  "vendor": "D-Link",
  "product": "DIR-878",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "1.20B05"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "DIR-878",
      "purl": null
    }
  ],
  "cwes": [
    121
  ],
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P",
  "epss_score": 0.0054,
  "epss_percentile": 0.4557,
  "epss_asof": "2026-11-09",
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 17.03768905,
  "t0_at": "2026-11-09T03:15:50.227000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-09T07:12:13.458419+00:00",
      "days": 0.16415777105324075,
      "is_lower_bound": false,
      "measured_at": "2026-11-09T03:15:50.227000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-09T03:15:50.227000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-09T03:15:50.227000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-124561"
    }
  }
}