CVEvulnerability
CVE-2020-26556
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-05-24
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 2.9 LOW — AV:A/AC:M/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-307
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.
Affected configurations
• bluetooth bluetooth core specification (>= 1.0b <= 5.2)
• bluetooth mesh profile 1.0.0
• bluetooth mesh profile 1.0.1
Related
Weakness · CWE (1)
- CWE-307 Improper Restriction of Excessive Authentication Attempts weakness
References
- https://kb.cert.org/vuls/id/799380 Third Party Advisory, US Government Resource
- https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/ Vendor Advisory
- https://www.kb.cert.org/vuls/id/799380 Third Party Advisory, US Government Resource
- https://kb.cert.org/vuls/id/799380 Third Party Advisory, US Government Resource
- https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/ Vendor Advisory
- https://www.kb.cert.org/vuls/id/799380 Third Party Advisory, US Government Resource