« Back to list

CVE-2021-0677

Status: ModifiedMedium (4.4)—

In ccu driver, there is a possible out of bounds read due to an integer overflow. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS05827154; Issue ID: ALPS05827154.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2021-0677",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.4,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 0.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@android.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "MT6833, MT6853, MT6873, MT6877, MT6885, MT6889, MT8771, MT8791",
          "versions": [
            {
              "status": "affected",
              "version": "Android 11.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-12-17T17:15:10.983",
  "references": [
    {
      "url": "https://corp.mediatek.com/product-security-bulletin/December-2021",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@android.com"
    },
    {
      "url": "https://corp.mediatek.com/product-security-bulletin/December-2021",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In ccu driver, there is a possible out of bounds read due to an integer overflow. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS05827154; Issue ID: ALPS05827154."
    },
    {
      "lang": "es",
      "value": "En el controlador ccu, se presenta una posible lectura fuera de límites debido a un desbordamiento de enteros. Esto podría conllevar a una divulgación de información local con privilegios de ejecución System requeridos. No es requerida una interacción del usuario para su explotación. ID del Parche: ALPS05827154; ID de Incidencia: ALPS05827154"
    }
  ],
  "lastModified": "2026-06-17T03:30:31.527",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "109DD7FD-3A48-4C3D-8E1A-4433B98E1E64"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt6833:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "9814939B-F05E-4870-90C0-7C0F6BAAEB39"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt6853:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "366F1912-756B-443E-9962-224937DD7DFB"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt6873:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "F6B8A36E-C5FB-44AE-A1C3-50EBF4C68F6B"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt6877:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "7CA9352F-E9BD-4656-9B7C-4AFEE2C78E58"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt6885:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "DD64413C-C774-4C4F-9551-89E1AA9469EE"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt6889:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "3B787DC3-8E5A-4968-B20B-37B6257FAAE2"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt8771:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "0D09F23D-D023-4A60-B426-61251FDD8A5A"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt8791:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "9CD2C3EC-B62D-4616-964F-FDBE5B14A449"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "security@android.com"
}