« Back to list

CVE-2023-20820

Status: ModifiedHigh (7.2)—

In wlan service, there is a possible command injection due to improper input validation. This could lead to remote code execution with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00244189; Issue ID: WCNCR00244189.

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-2023-20820",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-20820",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-10-09T15:10:16.025434Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.2,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.2
      }
    ]
  },
  "affected": [
    {
      "source": "security@mediatek.com",
      "affectedData": [
        {
          "vendor": "MediaTek, Inc.",
          "product": "MT6890, MT7603, MT7612, MT7613, MT7615, MT7622, MT7626, MT7629, MT7915, MT7916, MT7981, MT7986, MT7990",
          "versions": [
            {
              "status": "affected",
              "version": "OpenWRT 19.07, 21.02"
            }
          ]
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*"
          ],
          "vendor": "mediatek",
          "product": "mt6890",
          "versions": [
            {
              "status": "affected",
              "version": "openwrt_19.07"
            },
            {
              "status": "affected",
              "version": "openwrt_2102"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt7603:-:*:*:*:*:*:*:*"
          ],
          "vendor": "mediatek",
          "product": "mt7603",
          "versions": [
            {
              "status": "affected",
              "version": "openwrt_19.07"
            },
            {
              "status": "affected",
              "version": "openwrt_2102"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt7612:-:*:*:*:*:*:*:*"
          ],
          "vendor": "mediatek",
          "product": "mt7612",
          "versions": [
            {
              "status": "affected",
              "version": "openwrt_19.07"
            },
            {
              "status": "affected",
              "version": "openwrt_2102"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt7613:-:*:*:*:*:*:*:*"
          ],
          "vendor": "mediatek",
          "product": "mt7613",
          "versions": [
            {
              "status": "affected",
              "version": "openwrt_19.07"
            },
            {
              "status": "affected",
              "version": "openwrt_2102"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt7615:-:*:*:*:*:*:*:*"
          ],
          "vendor": "mediatek",
          "product": "mt7615",
          "versions": [
            {
              "status": "affected",
              "version": "openwrt_19.07"
            },
            {
              "status": "affected",
              "version": "openwrt_2102"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt7622:-:*:*:*:*:*:*:*"
          ],
          "vendor": "mediatek",
          "product": "mt7622",
          "versions": [
            {
              "status": "affected",
              "version": "openwrt_19.07"
            },
            {
              "status": "affected",
              "version": "openwrt_2102"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt7626:-:*:*:*:*:*:*:*"
          ],
          "vendor": "mediatek",
          "product": "mt7626",
          "versions": [
            {
              "status": "affected",
              "version": "openwrt_19.07"
            },
            {
              "status": "affected",
              "version": "openwrt_2102"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt7629:-:*:*:*:*:*:*:*"
          ],
          "vendor": "mediatek",
          "product": "mt7629",
          "versions": [
            {
              "status": "affected",
              "version": "openwrt_19.07"
            },
            {
              "status": "affected",
              "version": "openwrt_2102"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt7915:-:*:*:*:*:*:*:*"
          ],
          "vendor": "mediatek",
          "product": "mt7915",
          "versions": [
            {
              "status": "affected",
              "version": "openwrt_19.07"
            },
            {
              "status": "affected",
              "version": "openwrt_2102"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt7916:-:*:*:*:*:*:*:*"
          ],
          "vendor": "mediatek",
          "product": "mt7916",
          "versions": [
            {
              "status": "affected",
              "version": "openwrt_19.07"
            },
            {
              "status": "affected",
              "version": "openwrt_2102"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt7981:-:*:*:*:*:*:*:*"
          ],
          "vendor": "mediatek",
          "product": "mt7981",
          "versions": [
            {
              "status": "affected",
              "version": "openwrt_19.07"
            },
            {
              "status": "affected",
              "version": "openwrt_2102"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt7986:-:*:*:*:*:*:*:*"
          ],
          "vendor": "mediatek",
          "product": "mt7986",
          "versions": [
            {
              "status": "affected",
              "version": "openwrt_19.07"
            },
            {
              "status": "affected",
              "version": "openwrt_2102"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:h:mediatek:mt7990:-:*:*:*:*:*:*:*"
          ],
          "vendor": "mediatek",
          "product": "mt7990",
          "versions": [
            {
              "status": "affected",
              "version": "openwrt_19.07"
            },
            {
              "status": "affected",
              "version": "openwrt_2102"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2023-09-04T03:15:07.840",
  "references": [
    {
      "url": "https://corp.mediatek.com/product-security-bulletin/September-2023",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@mediatek.com"
    },
    {
      "url": "https://corp.mediatek.com/product-security-bulletin/September-2023",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In wlan service, there is a possible command injection due to improper input validation. This could lead to remote code execution with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00244189; Issue ID: WCNCR00244189."
    },
    {
      "lang": "es",
      "value": "En wlan service, se presenta una posible inyección de comando debido a una comprobación de entrada inapropiada. Esto podría conducir a la divulgación de información local con privilegios de ejecución del sistema necesarios. No es necesaria la interacción del usuario para su explotación. ID del parche: WCNCR00244189; ID de la incidencia: WCNCR00244189."
    }
  ],
  "lastModified": "2026-06-17T05:30:55.960",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:openwrt:openwrt:19.07.0:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4FA469E2-9E63-4C9A-8EBA-10C8C870063A"
            },
            {
              "criteria": "cpe:2.3:o:openwrt:openwrt:21.02.0:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F0133207-2EED-4625-854F-8DB7770D5BF7"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "171D1C08-F055-44C0-913C-AA2B73AF5B72"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt7603:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "8A45CDA9-95E6-4C02-8C3C-3B0CF7272A6F"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt7612:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "EF2E9975-607D-4F06-A85A-B1C2BE3C5B75"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt7613:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "4979BA07-DC09-4DF8-BA7F-E4143A0ECFE6"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt7615:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "05748BB1-0D48-4097-932E-E8E2E574FD8D"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt7622:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "55EB4B27-6264-45BE-9A22-BE8418BB0C06"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt7626:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "79C6A4C1-BAB5-4C53-91CF-2637C2ECF37F"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt7629:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "29C210A3-C71E-4010-9DD6-9E36CADC9EED"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt7915:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "3AB22996-9C22-4B6C-9E94-E4C055D16335"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt7916:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "DD5AA441-5381-4179-89EB-1642120F72B4"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt7981:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "490CD97B-021F-4350-AEE7-A2FA866D5889"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt7986:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "40A9E917-4B34-403F-B512-09EEBEA46811"
            },
            {
              "criteria": "cpe:2.3:h:mediatek:mt7990:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "4901B2A5-B0C8-4A0C-AC17-87D469744817"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "security@mediatek.com"
}