CVSS 3.1
4.2 mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:NCVE-2020-26558
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.
Severity
- EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
- CWE
- CWE-287
- Published
- Modified
- Record from
- the NVD, synced
Affected
- bluetooth:bluetooth_core_specification
- debian:debian_linux
- fedoraproject:fedora
- intel:ac_1550_firmware
- intel:ac_3165_firmware
- intel:ac_3168_firmware
- intel:ac_7265_firmware
- intel:ac_8260_firmware
- intel:ac_8265_firmware
- intel:ac_9260_firmware
- intel:ac_9461_firmware
- intel:ac_9462_firmware
- intel:ac_9560_firmware
- intel:ax1650_firmware
- intel:ax1675_firmware
- intel:ax200_firmware
- intel:ax201_firmware
- intel:ax210_firmware
- linux:linux_kernel
References
- 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/