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CVE-2021-46852

Estado: ModificadaAlta (7.5)—

The memory management module has the logic bypass vulnerability. Successful exploitation of this vulnerability may affect data confidentiality.

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 (2)

Huawei — EmuiHuawei — Harmonyos

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-46852",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-46852",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-05-01T17:33:44.442941Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "Huawei",
          "product": "HarmonyOS",
          "versions": [
            {
              "status": "affected",
              "version": "2.0"
            }
          ]
        },
        {
          "vendor": "Huawei",
          "product": "EMUI",
          "versions": [
            {
              "status": "affected",
              "version": "12.0.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-11-09T21:15:13.230",
  "references": [
    {
      "url": "https://consumer.huawei.com/en/support/bulletin/2022/11/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@huawei.com"
    },
    {
      "url": "https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202211-0000001441016433",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@huawei.com"
    },
    {
      "url": "https://consumer.huawei.com/en/support/bulletin/2022/11/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202211-0000001441016433",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The memory management module has the logic bypass vulnerability. Successful exploitation of this vulnerability may affect data confidentiality."
    },
    {
      "lang": "es",
      "value": "El módulo de administración de memoria tiene la vulnerabilidad de omisión lógica. La explotación exitosa de esta vulnerabilidad puede afectar la confidencialidad de los datos."
    }
  ],
  "lastModified": "2026-06-17T04:15:40.287",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:huawei:emui:12.0.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A974CA73-84E8-480B-BB4C-4A81D0C985B2"
            },
            {
              "criteria": "cpe:2.3:o:huawei:harmonyos:2.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3AD62E8B-CB4B-43A6-98E8-09A8A1A3505B"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@huawei.com"
}