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Vulnerability record · CVE-2020-26555 · published 24 May 2021

CVE-2020-26555: Bluetooth core specification incorrect authorization vulnerability

Bluetooth · Bluetooth Core Specification

Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B through 5.2 may permit an unauthenticated nearby device to spoof the BD_ADDR of the peer device to complete pairing without knowledge of the PIN.

5.4 CVSS 3.1 Medium EPSS 0.88% · top 42.5% CWE-863 · Incorrect authorization
5.4CVSS 3.1 base score, v2 4.8
0.88%EPSS exploitation probability, 30 days
NoNot in CISA KEV
17Affected product versions listed by NVD
9References
17 Jun 2026Last modified by NVD

Description

Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B through 5.2 may permit an unauthenticated nearby device to spoof the BD_ADDR of the peer device to complete pairing without knowledge of the PIN.

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

Affected products

17 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://kb.cert.org/vuls/id/799380 Third Party AdvisoryUS Government Resource
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NSS6CTGE4UGTJLCOZOASDR3
https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/ Vendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00520.html Third Party Advisory
https://kb.cert.org/vuls/id/799380 Third Party AdvisoryUS Government Resource
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NSS6CTGE4UGTJLCOZOASDR3
https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/ Vendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00520.html Third Party Advisory
https://www.kb.cert.org/vuls/id/799380

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Source: NIST National Vulnerability Database (record CVE-2020-26555), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.