CVE-2026-36958

{
  "id": "CVE-2026-36958",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-30T15:16:22.963",
  "lastModified": "2026-11-08T16:10:00.183",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A denial-of-service vulnerability exists in the U-SPEED N300 V1.0.0 wireless router. By sending a large number of concurrent HTTP requests to random or non-existent endpoints on the web management interface, an attacker can exhaust system resources in the embedded Boa HTTP server. This causes the router web interface to become unresponsive and may require manual reboot to restore normal operation."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de denegación de servicio existe en el router inalámbrico U-SPEED N300 V1.0.0. Al enviar un gran número de solicitudes HTTP concurrentes a puntos finales aleatorios o inexistentes en la interfaz de gestión web, un atacante puede agotar los recursos del sistema en el servidor HTTP Boa integrado. Esto provoca que la interfaz web del router deje de responder y puede requerir un reinicio manual para restaurar el funcionamiento normal."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "version": "n/a",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-30T15:35:59.947954Z",
          "id": "CVE-2026-36958",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    }
  ],
  "configurations": [
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:u-speed:n300_firmware:1.0.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "CA1BC4D0-0B7E-4D7B-86CF-BDAF840BE683"
            }
          ]
        },
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": false,
              "criteria": "cpe:2.3:h:u-speed:n300:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "9353B74A-54EE-47D6-AE12-294C0668DDCB"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/kirubel-cve/CVE-2026-36958",
      "source": "[email protected]",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    }
  ]
}