High severity7.5NVD Advisory· Published May 24, 2021· Updated Jun 17, 2026
CVE-2020-26556
CVE-2020-26556
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5- cpe:2.3:a:bluetooth:bluetooth_core_specification:*:*:*:*:*:*:*:*Range: >=1.0b,<=5.2
cpe:2.3:a:bluetooth:mesh_profile:1.0.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:bluetooth:mesh_profile:1.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:bluetooth:mesh_profile:1.0.1:*:*:*:*:*:*:*
- Bluetooth/Bluetooth Mesh profiledescription
- Range: 1.0, 1.0.1
Patches
Vulnerability mechanics
References
3- kb.cert.org/vuls/id/799380nvdThird Party AdvisoryUS Government Resource
- www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/nvdVendor Advisory
- www.kb.cert.org/vuls/id/799380nvdThird Party AdvisoryUS Government Resource
News mentions
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