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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-2689-1 | linux security update |
Debian DLA |
DLA-2690-1 | linux-4.19 security update |
Debian DLA |
DLA-2692-1 | bluez security update |
Debian DSA |
DSA-4951-1 | bluez security update |
EUVD |
EUVD-2020-19103 | 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. |
Ubuntu USN |
USN-4989-1 | BlueZ vulnerabilities |
Ubuntu USN |
USN-4989-2 | BlueZ vulnerabilities |
Ubuntu USN |
USN-5017-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-5018-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-5046-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-5050-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-5299-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-5343-1 | Linux kernel vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 04 Nov 2025 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2025-11-04T19:12:18.753Z
Reserved: 2020-10-04T00:00:00.000Z
Link: CVE-2020-26558
No data.
Status : Modified
Published: 2021-05-24T18:15:07.930
Modified: 2025-11-04T20:15:58.053
Link: CVE-2020-26558
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA
EUVD
Ubuntu USN