VULNERABILITY INTELLIGENCE

CVE-2020-26557

CVSS score7.5 HIGH

EPSS probability0.83%

CISA KEVNot currently listed

Published2021-05-24

Last modified2026-06-17

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

Description

Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device (without possession of the AuthValue used in the provisioning protocol) to determine the AuthValue via a brute-force attack (unless the AuthValue is sufficiently random and changed each time).

Weakness classification

nvd@nist.gov: CWE-287

Primary references

cve@mitre.org — Third Party Advisory, US Government Resource
cve@mitre.org — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108