CVE-2026-84411

{
  "etk_id": "ETK-2026-382",
  "cve_id": "CVE-2026-84411",
  "display_id": "CVE-2026-84411",
  "ghsa_id": "GHSA-xj4h-hf2x-2q43",
  "euvd_id": "EUVD-2026-91836",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unauthenticated integer underflow in RouterOS web management",
  "summary": "MikroTik RouterOS web management is affected by an integer underflow while handling HTTP request bodies. An unauthenticated network attacker can send a malformed request to run code as root or cause a denial of service.",
  "mitigation": "Upgrade RouterOS to version 7.24 or later.",
  "vendor": "MikroTik",
  "product": "RouterOS",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 7.24"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "7.24"
      ],
      "package_name": "RouterOS",
      "purl": null
    }
  ],
  "cwes": [
    191
  ],
  "cvss_score": 9.3,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
  "epss_score": 0.0095,
  "epss_percentile": 0.6047,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 25.951731666666667,
  "t0_at": "2026-10-02T22:09:48.298000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-02T23:32:16.417375+00:00",
      "days": 0.05726990017361111,
      "is_lower_bound": false,
      "measured_at": "2026-10-02T22:09:48.298000+00:00",
      "url": null
    },
    "public_poc": {
      "at": "2026-10-10T15:59:09+00:00",
      "days": 7.742600717592593,
      "is_lower_bound": false,
      "measured_at": "2026-10-02T22:09:48.298000+00:00",
      "url": "https://github.com/maxprog-svg/CVE-2026-84411"
    },
    "trigger_signal": {
      "at": "2026-10-02T22:09:48.298000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-02T22:09:48.298000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-84411"
    }
  }
}