« Volver al listado

CVE-2022-4873

Estado: ModificadaCrítica (9.8)—

On Netcomm router models NF20MESH, NF20, and NL1902 a stack based buffer overflow affects the sessionKey parameter. By providing a specific number of bytes, the instruction pointer is able to be overwritten on the stack and crashes the application at a known location.

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 (3)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2022-4873",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-4873",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-09T14:10:05.519246Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cret@cert.org",
      "affectedData": [
        {
          "vendor": "Netcomm",
          "product": "NF20",
          "versions": [
            {
              "status": "affected",
              "version": "R6B025"
            }
          ]
        },
        {
          "vendor": "Netcomm",
          "product": "NF20MESH",
          "versions": [
            {
              "status": "affected",
              "version": "R6B025"
            }
          ]
        },
        {
          "vendor": "Netcomm",
          "product": "NL1902",
          "versions": [
            {
              "status": "affected",
              "version": "R6B025"
            }
          ]
        }
      ]
    }
  ],
  "published": "2023-01-11T21:15:10.307",
  "references": [
    {
      "url": "https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.kb.cert.org/vuls/id/986018",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "On Netcomm router models NF20MESH, NF20, and NL1902 a stack based buffer overflow affects the sessionKey parameter. By providing a specific number of bytes, the instruction pointer is able to be overwritten on the stack and crashes the application at a known location."
    },
    {
      "lang": "es",
      "value": "En los modelos de router Netcomm NF20MESH, NF20 y NL1902, un desbordamiento del búfer basado en pila afecta el parámetro sessionKey. Al proporcionar una cantidad específica de bytes, el puntero de instrucción puede sobrescribirse en la pila y bloquear la aplicación en una ubicación conocida."
    }
  ],
  "lastModified": "2026-06-17T05:22:04.887",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netcommwireless:nf20_firmware:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "447DAC30-D02D-43A7-9C11-9B29D3AE6292",
              "versionEndExcluding": "r6b025"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netcommwireless:nf20:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "C9BF282B-6B02-492D-A248-80D6C5DD0B50"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netcommwireless:nf20mesh_firmware:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "492B3CE0-A18A-4D6E-A20F-5CD00D8FC234",
              "versionEndExcluding": "r6b025"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netcommwireless:nf20mesh:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "79CF62CC-4353-4090-8D85-5F8126A029EB"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netcommwireless:nl1902_firmware:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "131C4DCD-D115-40AE-A53D-2C3B4799CBD5",
              "versionEndExcluding": "r6b025"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netcommwireless:nl1902:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "B02578F1-96D9-4A0C-A27E-F08518A7CA55"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "cret@cert.org"
}