What’s Vulnerable › Vulnerabilities

CVE-2020-26557

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-05-24 · updated 2026-06-17
• Weakness: CWE-287

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).

Affected products

• Bluetooth Mesh Profile: 1.0.0, 1.0.1

References

• https://kb.cert.org/vuls/id/799380
• https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/
• https://kb.cert.org/vuls/id/799380
• https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/
• https://www.kb.cert.org/vuls/id/799380

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