CVE-2020-26559

Description

Bluetooth Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device (participating in the provisioning protocol) to identify the AuthValue used given the Provisioner’s public key, and the confirmation number and nonce provided by the provisioning device. This could permit a device without the AuthValue to complete provisioning without brute-forcing the AuthValue.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.56% Top 20%
Vendor Advisory bluetooth.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/ vendor advisory
https://kb.cert.org/vuls/id/799380 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2020-26559?
CVE-2020-26559 has been scored as a high severity vulnerability.
How to fix CVE-2020-26559?
To fix CVE-2020-26559, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-26559 being actively exploited in the wild?
It is possible that CVE-2020-26559 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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