Vulnerability DatabaseCVE-2020-26557
Mend.io Vulnerability Database
The largest open source vulnerability database
What is a Vulnerability ID?
New vulnerability? Tell us about it!
CVE-2020-26557
Published:May 24, 2021
Updated:September 21, 2026
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).
Related Resources (6)
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-26557
https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/
https://www.kb.cert.org/vuls/id/799380
https://kb.cert.org/vuls/id/799380
https://access.redhat.com/security/cve/CVE-2020-26557
https://security-tracker.debian.org/tracker/CVE-2020-26557
Do you need more information?
Contact Us
CVSS v4
Base Score:
7.7
Attack Vector
ADJACENT
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Authentication
CWE-287
EPSS
Base Score:
0.83