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CVE-2022-38956

Estado: ModificadaMedia (5.3)—

An exploitable firmware downgrade vulnerability was discovered on the Netgear WPN824EXT WiFi Range Extender. An attacker can conduct a MITM attack to replace the user-uploaded firmware image with an original old firmware image. This affects Firmware 1.1.1_1.1.9 and earlier.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Netgear — Wpn824ext Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2022-38956",
  "cveTags": [],
  "metrics": {
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      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-38956",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-05-28T16:11:29.033749Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "version": "3.1",
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          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.6
      },
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        "type": "Secondary",
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  "published": "2022-09-20T18:15:10.403",
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      "url": "https://www.netgear.com/about/security/",
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    {
      "url": "https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
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      "description": [
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          "value": "CWE-354"
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    },
    {
      "type": "Secondary",
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          "value": "CWE-354"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An exploitable firmware downgrade vulnerability was discovered on the Netgear WPN824EXT WiFi Range Extender. An attacker can conduct a MITM attack to replace the user-uploaded firmware image with an original old firmware image. This affects Firmware 1.1.1_1.1.9 and earlier."
    },
    {
      "lang": "es",
      "value": "Se ha detectado una vulnerabilidad explotable de downgrade de firmware en el extensor de rango WiFi WPN824EXT de Netgear. Un atacante puede llevar a cabo un ataque de tipo MITM para sustituir la imagen de firmware descargada por el usuario por una imagen de firmware antigua original. Esto afecta al firmware 1.1.1_1.1.9 y anteriores"
    }
  ],
  "lastModified": "2026-06-17T04:57:20.813",
  "configurations": [
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}