FKIE_CVE-2023-20702

Vulnerability from fkie_nvd - Published: 2023-11-06 04:15 - Updated: 2026-06-17 05:30
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In 5G NRLC, there is a possible invalid memory access due to lack of error handling. This could lead to remote denial of service, if UE received invalid 1-byte rlc sdu, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00921261; Issue ID: MOLY01128895.
References
security@mediatek.comhttps://corp.mediatek.com/product-security-bulletin/November-2023Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://corp.mediatek.com/product-security-bulletin/November-2023Vendor Advisory
Impacted products
Vendor Product Version
mediatek nr15 -
mediatek nr16 -
mediatek nr17 -
mediatek mt6835 -
mediatek mt6873 -
mediatek mt6875 -
mediatek mt6879 -
mediatek mt6883 -
mediatek mt6885 -
mediatek mt6886 -
mediatek mt6889 -
mediatek mt6895 -
mediatek mt6980 -
mediatek mt6983 -
mediatek mt6985 -
mediatek mt6990 -
mediatek mt8673 -
mediatek mt8675 -
mediatek mt8791 -
mediatek mt8791t -
mediatek mt8797 -
mediatek mt8798 -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "MT6835, MT6873, MT6875, MT6879, MT6883, MT6885, MT6886, MT6889, MT6895, MT6980, MT6983, MT6985, MT6990, MT8673, MT8675, MT8791, MT8791T, MT8797, MT8798",
          "vendor": "MediaTek, Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "Modem NR15, NR16, NR17"
            }
          ]
        }
      ],
      "source": "security@mediatek.com"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt6835:-:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "mt6835",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt6873:-:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "mt6873",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
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          ],
          "defaultStatus": "unknown",
          "product": "mt6875",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
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          ],
          "defaultStatus": "unknown",
          "product": "mt6879",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
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          ],
          "defaultStatus": "unknown",
          "product": "mt6883",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
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          ],
          "defaultStatus": "unknown",
          "product": "mt6885",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
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        },
        {
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          ],
          "defaultStatus": "unknown",
          "product": "mt6886",
          "vendor": "mediatek",
          "versions": [
            {
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              "status": "affected",
              "version": "0",
              "versionType": "custom"
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        },
        {
          "cpes": [
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          ],
          "defaultStatus": "unknown",
          "product": "mt6889",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt6895:-:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "mt6895",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
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          ],
          "defaultStatus": "unknown",
          "product": "mt6980",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
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          ],
          "defaultStatus": "unknown",
          "product": "mt6983",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
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            }
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        },
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          "cpes": [
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          ],
          "defaultStatus": "unknown",
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          "vendor": "mediatek",
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            {
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              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt6990:-:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "mt6990",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt8673:-:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "mt8673",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt8675:-:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "mt8675",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
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          ],
          "defaultStatus": "unknown",
          "product": "mt8791",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt8791t:-:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "mt8791t",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
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          ],
          "defaultStatus": "unknown",
          "product": "mt8797",
          "vendor": "mediatek",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt8798:-:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "mt8798",
          "vendor": "mediatek",
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            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
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              "vulnerable": true
            },
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          "negate": false,
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      "operator": "AND"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In 5G NRLC, there is a possible invalid memory access due to lack of error handling. This could lead to remote denial of service, if UE received invalid 1-byte rlc sdu, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00921261; Issue ID: MOLY01128895."
    },
    {
      "lang": "es",
      "value": "En 5G NRLC, existe un posible acceso no v\u00e1lido a la memoria debido a la falta de manejo de errores. Esto podr\u00eda provocar una denegaci\u00f3n remota de servicio, si el UE recibiera un rlc sdu de 1 byte no v\u00e1lido, sin necesidad de privilegios de ejecuci\u00f3n adicionales. La interacci\u00f3n del usuario no es necesaria para la explotaci\u00f3n. ID de parche: MOLY00921261; ID del problema: MOLY01128895."
    }
  ],
  "id": "CVE-2023-20702",
  "lastModified": "2026-06-17T05:30:40.650",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-20702",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-05T15:16:26.867886Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-11-06T04:15:07.653",
  "references": [
    {
      "source": "security@mediatek.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://corp.mediatek.com/product-security-bulletin/November-2023"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://corp.mediatek.com/product-security-bulletin/November-2023"
    }
  ],
  "sourceIdentifier": "security@mediatek.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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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

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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.
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  • 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.


Detection rules are retrieved from Rulezet.