Vulnerability-Lookup

FKIE_CVE-2019-5637

Vulnerability from fkie_nvd - Published: 2019-11-21 20:15 - Updated: 2026-06-17 02:38

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

When Beckhoff TwinCAT is configured to use the Profinet driver, a denial of service of the controller could be reached by sending a malformed UDP packet to the device. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).

References

URL	Tags
cve@rapid7.com	https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/	Exploit, Third Party Advisory
cve@rapid7.com	https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-007.pdf	Mitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-007.pdf	Mitigation, Vendor Advisory

Impacted products

Vendor	Product	Version
beckhoff	twincat	3.1.4022.30
beckhoff	twincat_cx2030	-
beckhoff	twincat_cx5140	-
beckhoff	twincat	3.1.4022.29
beckhoff	twincat_cx5140	-

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "TwinCAT 2",
          "vendor": "Beckhoff",
          "versions": [
            {
              "lessThanOrEqual": "2304",
              "status": "affected",
              "version": "2304",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "TwinCAT 3.1",
          "vendor": "Beckhoff",
          "versions": [
            {
              "lessThanOrEqual": "4204.0",
              "status": "affected",
              "version": "4204.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "cve@rapid7.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
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          "cpeMatch": [
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              "matchCriteriaId": "477A520F-02A3-4D28-BBF5-C4717C070966",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
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              "matchCriteriaId": "6A355A09-C6BE-46DC-833D-F10BB2D6D7F0",
              "vulnerable": false
            },
            {
              "criteria": "cpe:2.3:h:beckhoff:twincat_cx5140:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "31D140D1-8A39-4AB3-A5B4-354E5A3CE3D9",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
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              "vulnerable": true
            }
          ],
          "negate": false,
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        },
        {
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              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "When Beckhoff TwinCAT is configured to use the Profinet driver, a denial of service of the controller could be reached by sending a malformed UDP packet to the device. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior)."
    },
    {
      "lang": "es",
      "value": "Cuando Beckhoff TwinCAT est\u00e1 configurado para usar el controlador Profinet, se puede llegar a una denegaci\u00f3n de servicio del controlador enviando un paquete UDP con formato incorrecto al dispositivo. Este problema afecta a TwinCAT 2 versi\u00f3n 2304 (y anterior) y TwinCAT 3.1 versi\u00f3n 4204.0 (y anterior)."
    }
  ],
  "id": "CVE-2019-5637",
  "lastModified": "2026-06-17T02:38:00.487",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "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": "cve@rapid7.com",
        "type": "Secondary"
      },
      {
        "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"
      }
    ]
  },
  "published": "2019-11-21T20:15:15.990",
  "references": [
    {
      "source": "cve@rapid7.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/"
    },
    {
      "source": "cve@rapid7.com",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-007.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      ],
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-007.pdf"
    }
  ],
  "sourceIdentifier": "cve@rapid7.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-369"
        }
      ],
      "source": "cve@rapid7.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-369"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2019-5637 (GCVE-0-2019-5637)

Vulnerability from cvelistv5 – Published: 2019-11-21 19:16 – Updated: 2024-09-17 01:35

Title

Beckhoff TwinCAT Profinet Driver Divide-by-Zero Denial of Service

Summary

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-369 - Divide By Zero

Assigner

rapid7 mitre root

References

2 references

URL	Tags
https://blog.rapid7.com/2019/10/08/r7-2019-32-den…	x_refsource_MISC
https://download.beckhoff.com/download/Document/p…	x_refsource_CONFIRM

Impacted products

2 products

Vendor	Product	Version
Beckhoff	TwinCAT 2	Affected: 2304 , ≤ 2304 (custom)
Beckhoff	TwinCAT 3.1	Affected: 4204.0 , ≤ 4204.0 (custom)

Date Public

2019-10-08 00:00

Credits

This issue was discovered, and reported to Rapid7, by Andreas Galauner at Rapid7. It is being disclosed in accordance with Rapid7's vulnerability disclosure policy (https://www.rapid7.com/disclosure/).

Show details on NVD website

JSON

To clipboard

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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.

Detection rules are retrieved from Rulezet.

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.