CVE-2020-26558
Estado: ModificadaMedia (4.2)—
Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- Puntuación base: 4.2
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.87%
- Percentil entre todas las CVEs puntuadas: 57
- Fecha de la puntuación: 2/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (19)
Bluetooth — Bluetooth Core SpecificationDebian — Debian LinuxFedoraproject — FedoraIntel — AC 1550 FirmwareIntel — AC 3165 FirmwareIntel — AC 3168 FirmwareIntel — AC 7265 FirmwareIntel — AC 8260 FirmwareIntel — AC 8265 FirmwareIntel — AC 9260 FirmwareIntel — AC 9461 FirmwareIntel — AC 9462 FirmwareIntel — AC 9560 FirmwareIntel — Ax1650 FirmwareIntel — Ax1675 FirmwareIntel — Ax200 FirmwareIntel — Ax201 FirmwareIntel — Ax210 FirmwareLinux — Linux Kernel
CWE
- CWE-287
Referencias
- https://kb.cert.org/vuls/id/799380
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00022.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NSS6CTGE4UGTJLCOZOASDR3T3SLL6QJZ/
- https://security.gentoo.org/glsa/202209-16
- https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/
- https://www.debian.org/security/2021/dsa-4951
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00517.html
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00520.html
- https://kb.cert.org/vuls/id/799380
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00022.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NSS6CTGE4UGTJLCOZOASDR3T3SLL6QJZ/
- https://security.gentoo.org/glsa/202209-16
- https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/
- https://www.debian.org/security/2021/dsa-4951
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00517.html
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00520.html
- https://www.kb.cert.org/vuls/id/799380
JSON original (NVD)
Mostrar
{
"id": "CVE-2020-26558",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 4.3,
"accessVector": "ADJACENT_NETWORK",
"vectorString": "AV:A/AC:M/Au:N/C:P/I:P/A:N",
"authentication": "NONE",
"integrityImpact": "PARTIAL",
"accessComplexity": "MEDIUM",
"availabilityImpact": "NONE",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 4.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 5.5,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 4.2,
"attackVector": "ADJACENT_NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
},
"impactScore": 2.5,
"exploitabilityScore": 1.6
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2021-05-24T18:15:07.930",
"references": [
{
"url": "https://kb.cert.org/vuls/id/799380",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"source": "cve@mitre.org"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00022.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NSS6CTGE4UGTJLCOZOASDR3T3SLL6QJZ/",
"source": "cve@mitre.org"
},
{
"url": "https://security.gentoo.org/glsa/202209-16",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/",
"tags": [
"Vendor Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://www.debian.org/security/2021/dsa-4951",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00517.html",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00520.html",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://kb.cert.org/vuls/id/799380",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00022.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NSS6CTGE4UGTJLCOZOASDR3T3SLL6QJZ/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://security.gentoo.org/glsa/202209-16",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.debian.org/security/2021/dsa-4951",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00517.html",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00520.html",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.kb.cert.org/vuls/id/799380",
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-287"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time."
},
{
"lang": "es",
"value": "El emparejamiento seguro de Bluetooth LE y BR/EDR en Bluetooth Core Specification versiones 2.1 hasta 5.2, puede permitir a un atacante de tipo man-in-the-middle cercano identificar el Passkey usada durante el emparejamiento (en el procedimiento de autenticación de Passkey) mediante el reflejo de la clave pública y la evidencia de autenticació del dispositivo de inicio, potencialmente permitiendo a este atacante completar el emparejamiento autenticado con el dispositivo que responde usando la contraseña correcta para la sesión de emparejamiento. La metodología de ataque determina el valor de la Clave un bit a la vez"
}
],
"lastModified": "2026-06-17T03:08:11.693",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:bluetooth:bluetooth_core_specification:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9856E3E9-B127-4CA2-A4E3-006EBEF3ADD8",
"versionEndIncluding": "5.2",
"versionStartIncluding": "2.1"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7ABDE34F-742E-4233-8C9C-599457807773",
"versionEndExcluding": "5.13"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:intel:ax210_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2BA9E525-21D9-4B3E-85A2-63C7F01F7950"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:intel:ax210:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "F226D74C-4A48-4AC0-A565-A00D555E27D6"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:intel:ax201_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4AAB385A-5D49-4CED-92BD-8E790F29DCED"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:intel:ax201:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "4649D446-130B-4B31-B9ED-BA7F9F7EEB8F"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:intel:ax200_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1BECECBE-C8FC-4669-A5DF-22EF61449B1F"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:intel:ax200:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E9903E2E-A670-40D4-8B9F-D2C0CFDBFC9F"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:intel:ac_9560_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7154EAF0-2E61-4813-B443-C4556137EB4D"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:intel:ac_9560:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "D382D4A1-C8FD-4B47-B2C4-145232EC8AC5"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:intel:ac_9462_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D65359E2-1507-46F9-B259-7A75DF68EB34"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:intel:ac_9462:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "6E89EB0D-233A-486A-BDAE-F5726432CD7E"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:intel:ac_9461_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EC15313E-27FB-470E-BB55-4A372B04864D"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:intel:ac_9461:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "A11E55E8-5FA9-4ED7-AB61-03F22EE1759B"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:intel:ac_9260_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E2915178-6BB6-45EE-A19D-EDB5B78F2BE2"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:intel:ac_9260:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "C2795E42-D044-4D48-BCB2-61CC1A3471B1"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:intel:ac_8265_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1E5ADC21-F308-4CAA-8E98-4E7FDC7EDAAC"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:intel:ac_8265:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "C08E2F3E-C4B5-4227-A88D-C50E209A12CF"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:intel:ac_8260_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "28B0DBF3-63BB-40EF-9D46-E32D074D73DA"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:intel:ac_8260:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "B5A8F30C-6BB7-4CC6-ADBE-1859DAF66C58"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:intel:ac_3168_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E5199A11-AEAB-4110-A7F3-04239D35321F"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:intel:ac_3168:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "ED5B2BCE-2D8A-440C-B866-76E035314022"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:intel:ac_7265_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7218FFF6-506E-45D7-9428-DDEACF4E5E1A"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:intel:ac_7265:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "8F9F1CE7-8F14-4526-A857-7B954EC4BB6F"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:intel:ac_3165_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8D141E7D-2CC4-47E7-8EBD-E4653FAA5EEA"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:intel:ac_3165:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "197A3DA1-B8EF-438F-B933-32253C43C8EE"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:intel:ax1675_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0DAB2B67-5C39-4438-8E36-3F740A697599"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:intel:ax1675:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "3F407ACA-0952-4717-A302-2D5CEB6DB111"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:intel:ax1650_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B39FB813-1EC0-4B5C-B8CB-F5129DBF94C2"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:intel:ax1650:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E8B944F7-4A5F-41D0-A910-6F978F66CAA0"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:intel:ac_1550_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A66D96C8-7C0D-4615-B825-A15DBB37B920"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:intel:ac_1550:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "12419474-DB56-462D-9116-3614A4BBAF20"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "cve@mitre.org"
}