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CVE-2021-38682

Estado: ModificadaCrítica (9.8)—

A stack buffer overflow vulnerability has been reported to affect QNAP device running QVR Elite, QVR Pro, QVR Guard. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of QVR Elite, QVR Pro, QVR Guard: QuTS hero h5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QuTS hero h4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 4.5.4: QVR Guard 2.1.3.0 and later QTS 5.0.0: QVR Guard 2.1.3.0 and later

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)

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{
  "id": "CVE-2021-38682",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@qnapsecurity.com.tw",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.2
      },
      {
        "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
      }
    ]
  },
  "affected": [
    {
      "source": "security@qnapsecurity.com.tw",
      "affectedData": [
        {
          "vendor": "QNAP Systems Inc.",
          "product": "QVR Elite",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2.1.4.0 (2021/12/06)",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "QuTS hero h5.0.0"
          ]
        },
        {
          "vendor": "QNAP Systems Inc.",
          "product": "QVR Elite",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2.1.4.0 (2021/12/06)",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "QuTS hero h4.5.4"
          ]
        },
        {
          "vendor": "QNAP Systems Inc.",
          "product": "QVR Elite",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2.1.4.0 (2021/12/06)",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "QTS 5.0.0"
          ]
        },
        {
          "vendor": "QNAP Systems Inc.",
          "product": "QVR Elite",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2.1.4.0 (2021/12/06)",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "QTS 4.5.4"
          ]
        },
        {
          "vendor": "QNAP Systems Inc.",
          "product": "QVR Pro",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2.1.3.0 (2021/12/06)",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "QTS 4.5.4"
          ]
        },
        {
          "vendor": "QNAP Systems Inc.",
          "product": "QVR Pro",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2.1.3.0 (2021/12/06)",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "QTS 5.0.0"
          ]
        },
        {
          "vendor": "QNAP Systems Inc.",
          "product": "QVR Guard",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2.1.3.0",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "QTS 4.5.4"
          ]
        },
        {
          "vendor": "QNAP Systems Inc.",
          "product": "QVR Guard",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2.1.3.0",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "QTS 5.0.0"
          ]
        }
      ]
    }
  ],
  "published": "2022-01-14T01:15:08.493",
  "references": [
    {
      "url": "https://www.qnap.com/en/security-advisory/qsa-21-59",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@qnapsecurity.com.tw"
    },
    {
      "url": "https://www.qnap.com/en/security-advisory/qsa-21-59",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@qnapsecurity.com.tw",
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A stack buffer overflow vulnerability has been reported to affect QNAP device running QVR Elite, QVR Pro, QVR Guard. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of QVR Elite, QVR Pro, QVR Guard: QuTS hero h5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QuTS hero h4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 4.5.4: QVR Guard 2.1.3.0 and later QTS 5.0.0: QVR Guard 2.1.3.0 and later"
    },
    {
      "lang": "es",
      "value": "Se ha informado de una vulnerabilidad de desbordamiento del búfer de la pila que afecta al dispositivo de QNAP que ejecuta QVR Elite, QVR Pro, QVR Guard. Si es explotado, esta vulnerabilidad permite a atacantes ejecutar código arbitrario. Ya hemos corregido esta vulnerabilidad en las siguientes versiones de QVR Elite, QVR Pro, QVR Guard: QuTS hero h5.0.0: QVR Elite 2.1.4.0 (06/12/2021) y posteriores QuTS hero h4.5.4: QVR Elite 2.1.4.0 (06/12/2021) y posteriores QTS 5.0.0: QVR Elite 2.1.4.0 (06/12/2021) y posteriores QTS 4.5.4: QVR Elite 2.1.4.0 (06/12/2021) y posteriores QTS 4.5.4: QVR Pro 2.1.3.0 (06/12/2021) y posteriores QTS 5.0.0: QVR Pro 2.1.3.0 (06/12/2021) y posteriores QTS 4.5.4: QVR Guard 2.1.3.0 y posteriores QTS 5.0.0: QVR Guard 2.1.3.0 y posteriores"
    }
  ],
  "lastModified": "2026-06-17T04:02:34.930",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:qnap:qvr_elite:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "02D8DDB2-C4C3-4F8E-A2D7-38FEDCD1CCB5",
              "versionEndExcluding": "2.1.4.0"
            },
            {
              "criteria": "cpe:2.3:a:qnap:qvr_guard:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BC2A8376-494F-46C8-B54B-D19A4B07A21D",
              "versionEndExcluding": "2.1.3.0"
            },
            {
              "criteria": "cpe:2.3:a:qnap:qvr_pro:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3044E23F-D5B1-4E6C-AD52-55A0D0AB356E",
              "versionEndExcluding": "2.1.3.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@qnapsecurity.com.tw"
}