Vulnerability-Lookup

VAR-202105-0851

Vulnerability from variot - Updated: 2025-08-16 22:49

CODESYS V2 Web-Server before 1.1.9.20 has a a Buffer Copy without Checking the Size of the Input. CODESYS V2 Web-Server Contains a classic buffer overflow vulnerability.Denial of service (DoS) It may be put into a state

Show details on source website

JSON

To clipboard

{
  "@context": {
    "@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
    "affected_products": {
      "@id": "https://www.variotdbs.pl/ref/affected_products"
    },
    "configurations": {
      "@id": "https://www.variotdbs.pl/ref/configurations"
    },
    "credits": {
      "@id": "https://www.variotdbs.pl/ref/credits"
    },
    "cvss": {
      "@id": "https://www.variotdbs.pl/ref/cvss/"
    },
    "description": {
      "@id": "https://www.variotdbs.pl/ref/description/"
    },
    "exploit_availability": {
      "@id": "https://www.variotdbs.pl/ref/exploit_availability/"
    },
    "external_ids": {
      "@id": "https://www.variotdbs.pl/ref/external_ids/"
    },
    "iot": {
      "@id": "https://www.variotdbs.pl/ref/iot/"
    },
    "iot_taxonomy": {
      "@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
    },
    "patch": {
      "@id": "https://www.variotdbs.pl/ref/patch/"
    },
    "problemtype_data": {
      "@id": "https://www.variotdbs.pl/ref/problemtype_data/"
    },
    "references": {
      "@id": "https://www.variotdbs.pl/ref/references/"
    },
    "sources": {
      "@id": "https://www.variotdbs.pl/ref/sources/"
    },
    "sources_release_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_release_date/"
    },
    "sources_update_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_update_date/"
    },
    "threat_type": {
      "@id": "https://www.variotdbs.pl/ref/threat_type/"
    },
    "title": {
      "@id": "https://www.variotdbs.pl/ref/title/"
    },
    "type": {
      "@id": "https://www.variotdbs.pl/ref/type/"
    }
  },
  "@id": "https://www.variotdbs.pl/vuln/VAR-202105-0851",
  "affected_products": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/affected_products#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "model": "750-8204",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "03.06.19_\\(18\\)"
      },
      {
        "model": "750-881",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "fw15"
      },
      {
        "model": "750-891",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "fw08"
      },
      {
        "model": "750-8216",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "03.06.19_\\(18\\)"
      },
      {
        "model": "750-862",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "fw08"
      },
      {
        "model": "750-8206",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "03.06.19_\\(18\\)"
      },
      {
        "model": "750-8211",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "03.06.19_\\(18\\)"
      },
      {
        "model": "750-8217",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "03.06.19_\\(18\\)"
      },
      {
        "model": "750-8212",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "03.06.19_\\(18\\)"
      },
      {
        "model": "750-882",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "fw15"
      },
      {
        "model": "750-889",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "fw15"
      },
      {
        "model": "750-880",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "fw16"
      },
      {
        "model": "750-829",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "fw15"
      },
      {
        "model": "v2 web server",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "codesys",
        "version": "1.1.9.20"
      },
      {
        "model": "750-832",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "fw08"
      },
      {
        "model": "750-885",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "fw15"
      },
      {
        "model": "750-852",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "fw15"
      },
      {
        "model": "750-8214",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "03.06.19_\\(18\\)"
      },
      {
        "model": "750-823",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "fw08"
      },
      {
        "model": "750-893",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "fw08"
      },
      {
        "model": "750-8202",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "03.06.19_\\(18\\)"
      },
      {
        "model": "750-831",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "fw15"
      },
      {
        "model": "750-8210",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "03.06.19_\\(18\\)"
      },
      {
        "model": "750-8213",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "03.06.19_\\(18\\)"
      },
      {
        "model": "750-8207",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "03.06.19_\\(18\\)"
      },
      {
        "model": "750-890",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "fw08"
      },
      {
        "model": "750-8208",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "03.06.19_\\(18\\)"
      },
      {
        "model": "750-8203",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "wago",
        "version": "03.06.19_\\(18\\)"
      },
      {
        "model": "codesys v2 web server",
        "scope": "eq",
        "trust": 0.8,
        "vendor": "3s smart",
        "version": null
      },
      {
        "model": "codesys v2 web server",
        "scope": "eq",
        "trust": 0.8,
        "vendor": "3s smart",
        "version": "1.1.9.20"
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-007169"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-30191"
      }
    ]
  },
  "cve": "CVE-2021-30191",
  "cvss": {
    "@context": {
      "cvssV2": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
      },
      "cvssV3": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
      },
      "severity": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/cvss/severity#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/severity"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "cvssV2": [
          {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "author": "nvd@nist.gov",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "exploitabilityScore": 10.0,
            "id": "CVE-2021-30191",
            "impactScore": 2.9,
            "integrityImpact": "NONE",
            "severity": "MEDIUM",
            "trust": 1.9,
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          }
        ],
        "cvssV3": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "author": "nvd@nist.gov",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "exploitabilityScore": 3.9,
            "id": "CVE-2021-30191",
            "impactScore": 3.6,
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "trust": 1.0,
            "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"
          },
          {
            "attackComplexity": "Low",
            "attackVector": "Network",
            "author": "NVD",
            "availabilityImpact": "High",
            "baseScore": 7.5,
            "baseSeverity": "High",
            "confidentialityImpact": "None",
            "exploitabilityScore": null,
            "id": "CVE-2021-30191",
            "impactScore": null,
            "integrityImpact": "None",
            "privilegesRequired": "None",
            "scope": "Unchanged",
            "trust": 0.8,
            "userInteraction": "None",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          }
        ],
        "severity": [
          {
            "author": "nvd@nist.gov",
            "id": "CVE-2021-30191",
            "trust": 1.0,
            "value": "HIGH"
          },
          {
            "author": "NVD",
            "id": "CVE-2021-30191",
            "trust": 0.8,
            "value": "High"
          },
          {
            "author": "CNNVD",
            "id": "CNNVD-202105-1626",
            "trust": 0.6,
            "value": "HIGH"
          },
          {
            "author": "VULMON",
            "id": "CVE-2021-30191",
            "trust": 0.1,
            "value": "MEDIUM"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "VULMON",
        "id": "CVE-2021-30191"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-007169"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202105-1626"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-30191"
      }
    ]
  },
  "description": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/description#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "CODESYS V2 Web-Server before 1.1.9.20 has a a Buffer Copy without Checking the Size of the Input. CODESYS V2 Web-Server Contains a classic buffer overflow vulnerability.Denial of service (DoS) It may be put into a state",
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2021-30191"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-007169"
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-30191"
      }
    ],
    "trust": 1.71
  },
  "external_ids": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/external_ids#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "db": "NVD",
        "id": "CVE-2021-30191",
        "trust": 3.3
      },
      {
        "db": "JVN",
        "id": "JVNVU97061687",
        "trust": 0.8
      },
      {
        "db": "ICS CERT",
        "id": "ICSA-21-173-02",
        "trust": 0.8
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-007169",
        "trust": 0.8
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202105-1626",
        "trust": 0.6
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-30191",
        "trust": 0.1
      }
    ],
    "sources": [
      {
        "db": "VULMON",
        "id": "CVE-2021-30191"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-007169"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202105-1626"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-30191"
      }
    ]
  },
  "id": "VAR-202105-0851",
  "iot": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/iot#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": true,
    "sources": [
      {
        "db": "VARIoT devices database",
        "id": null
      }
    ],
    "trust": 0.38665413157894735
  },
  "last_update_date": "2025-08-16T22:49:25.068000Z",
  "patch": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/patch#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "title": "Advisory\u00a02021-07",
        "trust": 0.8,
        "url": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=14726\u0026token=553da5d11234bbe1ceed59969d419a71bb8c8747\u0026download="
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-007169"
      }
    ]
  },
  "problemtype_data": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "problemtype": "CWE-120",
        "trust": 1.0
      },
      {
        "problemtype": "Classic buffer overflow (CWE-120) [NVD Evaluation ]",
        "trust": 0.8
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-007169"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-30191"
      }
    ]
  },
  "references": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/references#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "trust": 1.7,
        "url": "https://customers.codesys.com/index.php"
      },
      {
        "trust": 1.7,
        "url": "https://customers.codesys.com/index.php?eid=dumpfile\u0026t=f\u0026f=14726\u0026token=553da5d11234bbe1ceed59969d419a71bb8c8747\u0026download="
      },
      {
        "trust": 1.4,
        "url": "https://nvd.nist.gov/vuln/detail/cve-2021-30191"
      },
      {
        "trust": 0.8,
        "url": "https://jvn.jp/vu/jvnvu97061687/index.html"
      },
      {
        "trust": 0.8,
        "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-173-02"
      },
      {
        "trust": 0.1,
        "url": "https://cwe.mitre.org/data/definitions/120.html"
      },
      {
        "trust": 0.1,
        "url": "https://nvd.nist.gov"
      }
    ],
    "sources": [
      {
        "db": "VULMON",
        "id": "CVE-2021-30191"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-007169"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202105-1626"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-30191"
      }
    ]
  },
  "sources": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "db": "VULMON",
        "id": "CVE-2021-30191"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-007169"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202105-1626"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-30191"
      }
    ]
  },
  "sources_release_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2021-05-25T00:00:00",
        "db": "VULMON",
        "id": "CVE-2021-30191"
      },
      {
        "date": "2022-02-03T00:00:00",
        "db": "JVNDB",
        "id": "JVNDB-2021-007169"
      },
      {
        "date": "2021-05-25T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202105-1626"
      },
      {
        "date": "2021-05-25T13:15:17.807000",
        "db": "NVD",
        "id": "CVE-2021-30191"
      }
    ]
  },
  "sources_update_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2021-05-26T00:00:00",
        "db": "VULMON",
        "id": "CVE-2021-30191"
      },
      {
        "date": "2022-02-03T07:52:00",
        "db": "JVNDB",
        "id": "JVNDB-2021-007169"
      },
      {
        "date": "2021-05-27T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202105-1626"
      },
      {
        "date": "2025-08-15T20:27:36.623000",
        "db": "NVD",
        "id": "CVE-2021-30191"
      }
    ]
  },
  "threat_type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/threat_type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "remote",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202105-1626"
      }
    ],
    "trust": 0.6
  },
  "title": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/title#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "CODESYS\u00a0V2\u00a0Web-Server\u00a0 Buffer Overflow Vulnerability in Linux",
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-007169"
      }
    ],
    "trust": 0.8
  },
  "type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "other",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202105-1626"
      }
    ],
    "trust": 0.6
  }
}

CVE-2021-30191 (GCVE-0-2021-30191)

Vulnerability from cvelistv5 – Published: 2021-05-25 12:09 – Updated: 2024-08-03 22:24

Summary

CODESYS V2 Web-Server before 1.1.9.20 has a a Buffer Copy without Checking the Size of the Input.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2281 records in the last 180 days details

References

2 references

URL	Tags
https://customers.codesys.com/index.php	x_refsource_MISC
https://customers.codesys.com/index.php?eID=dumpF…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T22:24:59.674Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://customers.codesys.com/index.php"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=14726\u0026token=553da5d11234bbe1ceed59969d419a71bb8c8747\u0026download="
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "CODESYS V2 Web-Server before 1.1.9.20 has a a Buffer Copy without Checking the Size of the Input."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-25T12:09:22.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://customers.codesys.com/index.php"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=14726\u0026token=553da5d11234bbe1ceed59969d419a71bb8c8747\u0026download="
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-30191",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "CODESYS V2 Web-Server before 1.1.9.20 has a a Buffer Copy without Checking the Size of the Input."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://customers.codesys.com/index.php",
              "refsource": "MISC",
              "url": "https://customers.codesys.com/index.php"
            },
            {
              "name": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=14726\u0026token=553da5d11234bbe1ceed59969d419a71bb8c8747\u0026download=",
              "refsource": "MISC",
              "url": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=14726\u0026token=553da5d11234bbe1ceed59969d419a71bb8c8747\u0026download="
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-30191",
    "datePublished": "2021-05-25T12:09:22.000Z",
    "dateReserved": "2021-04-07T00:00:00.000Z",
    "dateUpdated": "2024-08-03T22:24:59.674Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted