CVE-2026-120241

{
  "etk_id": "ETK-2026-3243",
  "cve_id": "CVE-2026-120241",
  "display_id": "CVE-2026-120241",
  "ghsa_id": "GHSA-6j24-g64r-jw54",
  "euvd_id": "EUVD-2026-114883",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Buffer overflow in Ruijie RG-ES firmware upgrade interface",
  "summary": "Ruijie RG-ES205GC, RG-ES206GC-P, RG-ES208GC, RG-ES210GC-LP, and RG-ES210GS-P devices running ESW_1.0(1)B1P48 are affected by a buffer overflow in the local firmware upgrade web interface. A remote unauthenticated attacker who can reach that interface may be able to cause a denial of service.",
  "mitigation": "Restrict the device management and firmware-upgrade web interface to trusted administrative networks with firewall rules or access controls, and prevent Internet exposure. No fixed version is recorded; monitor for and apply a vendor update when one becomes available.",
  "vendor": "Ruijie",
  "product": "RG-ES205GC",
  "affected": [
    {
      "affected_notes": [
        "ESW_1.0(1)B1P48"
      ],
      "affected_ranges": [],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "RG-ES205GC",
      "purl": null
    },
    {
      "affected_notes": [
        "ESW_1.0(1)B1P48"
      ],
      "affected_ranges": [],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "RG-ES206GC-P",
      "purl": null
    },
    {
      "affected_notes": [
        "ESW_1.0(1)B1P48"
      ],
      "affected_ranges": [],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "RG-ES208GC",
      "purl": null
    },
    {
      "affected_notes": [
        "ESW_1.0(1)B1P48"
      ],
      "affected_ranges": [],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "RG-ES210GC-LP",
      "purl": null
    },
    {
      "affected_notes": [
        "ESW_1.0(1)B1P48"
      ],
      "affected_ranges": [],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "RG-ES210GS-P",
      "purl": null
    }
  ],
  "cwes": [
    120
  ],
  "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": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 13.369958716666666,
  "t0_at": "2026-11-01T18:45:15.676000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-10-06T13:30:15+00:00",
      "days": -26.218757824074075,
      "is_lower_bound": false,
      "measured_at": "2026-11-01T18:45:15.676000+00:00",
      "url": "https://github.com/byseeker/Ruijie-RG-ES-Series-Switches_PreAuth_Boundary_Overflow_DoS"
    },
    "trigger_signal": {
      "at": "2026-11-01T18:45:15.676000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-01T18:45:15.676000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-120241"
    }
  }
}