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    CVE-2020-26556

    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.

    Published:May 24, 2021
    Last Modified:Nov 21, 2024
    EPS:May 24, 2021
    EPSS Score:0.01175
    CVSS Score:7.5

    Affected Products

    Vendor
    Bluetooth
    Product
    Bluetooth Core Specification
    Vendor
    Bluetooth
    Product
    Mesh Profile

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2022-25836 (CVSS 7.5) — Bluetooth® Low Energy Pairing in Bluetooth Core Specification v4.0 through v5.3 may permit an unauthenticated …
    CVE-2022-25837 (CVSS 7.5) — Bluetooth® Pairing in Bluetooth Core Specification v1.0B through v5.3 may permit an unauthenticated MITM to ac…
    CVE-2020-35473 (CVSS 4.3) — An information leakage vulnerability in the Bluetooth Low Energy advertisement scan response in Bluetooth Core…
    CVE-2021-31615 (CVSS 5.3) — Unencrypted Bluetooth Low Energy baseband links in Bluetooth Core Specifications 4.0 through 5.2 may permit an…
    CVE-2020-26558 (CVSS 4.2) — Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man…
    CVE-2020-26555 (CVSS 5.4) — Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B through 5.2 may permit an unauth…
    CVE-2020-15802 (CVSS 5.9) — Devices supporting Bluetooth before 5.1 may allow man-in-the-middle attacks, aka BLURtooth. Cross Transport Ke…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High