CVE-2026-121600

{
  "etk_id": "ETK-2026-3428",
  "cve_id": "CVE-2026-121600",
  "display_id": "CVE-2026-121600",
  "ghsa_id": "GHSA-3qmv-h4hw-rjxv",
  "euvd_id": "EUVD-2026-116669",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Stack buffer overflow in TOTOLINK A950RG MAC filter handler",
  "summary": "TOTOLINK A950RG firmware 4.1.2cu.5268_B20221104 is affected in its MAC filter handling interface. A remote attacker with the required low-level privileges can trigger a stack buffer overflow, potentially compromising the device. Exposure depends on the attacker being able to reach the management interface and authenticate with suitable privileges.",
  "mitigation": "Restrict router management access to trusted administrative networks and disable remote administration where it is not needed. Monitor for a vendor firmware update and apply it when available; no fixed version is recorded.",
  "vendor": "TOTOLINK",
  "product": "A950RG",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "4.1.2cu.5268_B20221104"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "A950RG",
      "purl": null
    }
  ],
  "cwes": [
    121
  ],
  "cvss_score": 9.4,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 20.803634283333334,
  "t0_at": "2026-11-04T00:45:35.387000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-04T00:45:35.387000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-04T00:45:35.387000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-121600"
    }
  }
}