CVE-2020-26556

HIGH

Bluetooth Mesh <1.0.1 - Privilege Escalation

Title source: llm
STIX 2.1

Description

Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device, able to conduct a successful brute-force attack on an insufficiently random AuthValue before the provisioning procedure times out, to complete authentication by leveraging Malleable Commitment.

References (3)

Core 3
Core References
Third Party Advisory, US Government Resource third-party-advisory x_refsource_cert-vn
https://www.kb.cert.org/vuls/id/799380
Third Party Advisory, US Government Resource x_refsource_misc
https://kb.cert.org/vuls/id/799380

Scores

CVSS v3 7.5
EPSS 0.0091
EPSS Percentile 55.1%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-307
Status published
Products (3)
bluetooth/bluetooth_core_specification 1.0b - 5.2
bluetooth/mesh_profile 1.0.0
bluetooth/mesh_profile 1.0.1
Published May 24, 2021
Tracked Since Feb 18, 2026