CVE-2020-26557 — HIGH (7.5)

Vulnerability 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).

CVSS Score

7.5

HIGH

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

Attack Vector

ADJACENT_NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Bluetooth	Mesh Profile	1.0.0

Related Weaknesses (CWE)

CWE-287

References

https://kb.cert.org/vuls/id/799380Third Party AdvisoryUS Government Resource
https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-securitVendor Advisory
https://kb.cert.org/vuls/id/799380Third Party AdvisoryUS Government Resource
https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-securitVendor Advisory
https://www.kb.cert.org/vuls/id/799380

FAQ

What is CVE-2020-26557?

CVE-2020-26557 is a vulnerability with a CVSS score of 7.5 (HIGH). 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-...

How severe is CVE-2020-26557?

CVE-2020-26557 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-26557?

Check the references section above for vendor advisories and patch information. Affected products include: Bluetooth Mesh Profile.