FKIE_CVE-2026-20475

Vulnerability from fkie_nvd - Published: 2026-08-03 03:16 - Updated: 2026-08-19 17:39
Summary
In display, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11004276; Issue ID: MSV-7748.

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "MediaTek chipset",
          "vendor": "MediaTek, Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "MT6991"
            },
            {
              "status": "affected",
              "version": "MT6993"
            },
            {
              "status": "affected",
              "version": "MT8126"
            },
            {
              "status": "affected",
              "version": "MT8171"
            },
            {
              "status": "affected",
              "version": "MT8188"
            },
            {
              "status": "affected",
              "version": "MT8189"
            },
            {
              "status": "affected",
              "version": "MT8367"
            },
            {
              "status": "affected",
              "version": "MT8668"
            },
            {
              "status": "affected",
              "version": "MT8676"
            },
            {
              "status": "affected",
              "version": "MT8678"
            },
            {
              "status": "affected",
              "version": "MT8766"
            },
            {
              "status": "affected",
              "version": "MT8768"
            },
            {
              "status": "affected",
              "version": "MT8781"
            },
            {
              "status": "affected",
              "version": "MT8786"
            },
            {
              "status": "affected",
              "version": "MT8791T"
            },
            {
              "status": "affected",
              "version": "MT8799"
            },
            {
              "status": "affected",
              "version": "MT8910"
            }
          ]
        }
      ],
      "source": "security@mediatek.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt8910_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "A05E635E-9559-4899-A7BA-A74EB6501D1C",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt8910:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "8C81BC81-1358-4005-8D35-92428D052A65",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt6991_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "D9DD2119-39E8-4A9C-8E2A-8FB7F92A1001",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt6991:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "CBBB30DF-E963-4940-B742-F6801F68C3FC",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt6993_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "FAEB2240-FF37-4CBE-BBEF-8A8281153646",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt6993:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "57E92BE0-5E65-4770-8E1A-0E5D07A38164",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt8126_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "5A54A9D4-A63F-42CC-A69D-5EB23648C458",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt8126:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "D9BA240B-3E89-4119-9167-8BD688358065",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt8171_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "C81DAF70-74E7-4EBC-AE1A-63DDBAE4B6C5",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt8171:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "6A91AE7A-DADC-47A0-9F82-6E872F57D915",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt8188_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "30E10DDB-6D3D-42CB-9DB9-ED25E6163D3D",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt8188:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "BA3D4A45-38EE-4125-AE67-89D1C707F95A",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt8189_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "527C8F57-8492-49BF-BCA9-0D77011D3493",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt8189:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "AE35C440-2C15-42FF-ADD0-D99C0FB7D1C9",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt8367_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "32C24935-B6E6-4923-B81C-D29BBEED2B3C",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt8367:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "A28FA947-314F-465B-8ADD-F7973F02D82A",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt8668_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "3EAACB56-716C-4E17-AB78-F5E68B75B791",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt8668:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "2589C222-3D62-4BDB-98F2-5F1E38600D8D",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt8676_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "645D7C99-A0A0-4FB0-97AC-3DA5161A44D9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt8676:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "EE302F6F-170E-4350-A8F4-65BE0C50CB78",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt8678_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "CFEC7A7B-6948-4B8A-BFA1-9F9D07043605",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt8678:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "152A5F3D-8004-4649-BDB1-E6F0798AF1CB",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt8766_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "215862D7-BF3D-4955-BCFF-48778190EEB5",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt8766:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "CE45F606-2E75-48BC-9D1B-99D504974CBF",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt8768_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "303069C6-F031-4176-9465-46F4134BB423",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt8768:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "1CC6E254-11A9-49CE-83FE-6DAC23E7D7AA",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt8781_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "7E2280E5-F903-4541-8404-9F789CEFF172",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt8781:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "533284E5-C3AF-48D3-A287-993099DB2E41",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt8786_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "88A514F4-3EAF-45FB-8736-4A015E4DEB4E",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt8786:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "9D2D5F91-6AAB-4516-AD01-5C60F58BA4A6",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt8791t_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "6D15A887-AC6B-4458-8355-8505742F4FC2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt8791t:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "1BB05B1D-77C9-4E42-91AD-9F087413DC20",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:mediatek:mt8799_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "BB8ADEB7-A1A3-4781-BB65-4D2AF9896F80",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt8799:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "ACB27F98-6318-44C8-A28D-375A357A03CA",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In display, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11004276; Issue ID: MSV-7748."
    }
  ],
  "id": "CVE-2026-20475",
  "lastModified": "2026-08-19T17:39:04.387",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 6.0,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 0.8,
        "impactScore": 5.2,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-20475",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-04T00:00:00+00:00",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-03T03:16:42.523",
  "references": [
    {
      "source": "security@mediatek.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mediatek.com/product-security-bulletin/August-2026"
    }
  ],
  "sourceIdentifier": "security@mediatek.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "security@mediatek.com",
      "type": "Secondary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

Loading…