Vulnerability-Lookup

FKIE_CVE-2020-26560

Vulnerability from fkie_nvd - Published: 2021-05-24 18:15 - Updated: 2026-06-17 03:08

Severity

8.1 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Summary

Bluetooth Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device, reflecting the authentication evidence from a Provisioner, to complete authentication without possessing the AuthValue, and potentially acquire a NetKey and AppKey.

References

URL	Tags
cve@mitre.org	https://kb.cert.org/vuls/id/799380	Third Party Advisory, US Government Resource
cve@mitre.org	https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://kb.cert.org/vuls/id/799380	Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108	https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.kb.cert.org/vuls/id/799380

Impacted products

	Vendor	Product	Version
	bluetooth	mesh_profile	1.0.0
	bluetooth	mesh_profile	1.0.1

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:bluetooth:mesh_profile:1.0.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "851ACDD0-CD31-4CEC-AD23-C57C68178352",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:bluetooth:mesh_profile:1.0.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "C4959D86-09FD-4C6A-AA52-7667FA9EC4BD",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Bluetooth Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device, reflecting the authentication evidence from a Provisioner, to complete authentication without possessing the AuthValue, and potentially acquire a NetKey and AppKey."
    },
    {
      "lang": "es",
      "value": "El Bluetooth Mesh Provisioning en el perfil de Bluetooth Mesh versiones 1.0 y 1.0.1, puede permitir a un dispositivo cercano, que refleja la evidencia de autenticaci\u00f3n de un proveedor, completar la autenticaci\u00f3n sin poseer el AuthValue y, potencialmente, adquirir una NetKey y AppKey"
    }
  ],
  "id": "CVE-2020-26560",
  "lastModified": "2026-06-17T03:08:12.010",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "ADJACENT_NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 6.5,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-05-24T18:15:07.990",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "url": "https://kb.cert.org/vuls/id/799380"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "url": "https://kb.cert.org/vuls/id/799380"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.kb.cert.org/vuls/id/799380"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2020-26560 (GCVE-0-2020-26560)

Vulnerability from cvelistv5 – Published: 2021-05-24 17:06 – Updated: 2025-11-04 19:12

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://www.bluetooth.com/learn-about-bluetooth/k…	x_refsource_MISC
https://kb.cert.org/vuls/id/799380	x_refsource_MISC
https://www.kb.cert.org/vuls/id/799380

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T19:12:21.032Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/"
          },
          {
            "tags": [
              "x_refsource_MISC",
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            ],
            "url": "https://kb.cert.org/vuls/id/799380"
          },
          {
            "url": "https://www.kb.cert.org/vuls/id/799380"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
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            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Bluetooth Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device, reflecting the authentication evidence from a Provisioner, to complete authentication without possessing the AuthValue, and potentially acquire a NetKey and AppKey."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-24T17:06:57.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
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          ],
          "url": "https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://kb.cert.org/vuls/id/799380"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-26560",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
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                          {
                            "version_value": "n/a"
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                      }
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            }
          ]
        },
        "problemtype": {
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              "description": [
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                  "value": "n/a"
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        "references": {
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            {
              "name": "https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/",
              "refsource": "MISC",
              "url": "https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/"
            },
            {
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              "refsource": "MISC",
              "url": "https://kb.cert.org/vuls/id/799380"
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  "cveMetadata": {
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    "dateReserved": "2020-10-04T00:00:00.000Z",
    "dateUpdated": "2025-11-04T19:12:21.032Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.