CVE-2020-12140

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    CVE-2020-12140

    Published: 7 Dec 2021Last Modified: 11 Feb 2026

    Summary:

    Details: A buffer overflow in os/net/mac/ble/ble-l2cap.c in the BLE stack in Contiki-NG 4.4 and earlier allows an attacker to execute arbitrary code via malicious L2CAP frames.

    References: https://github.com/contiki-ng/contiki-ng/pull/1662, https://twitter.com/ScepticCtf, https://github.com/contiki-ng/contiki-ng/pull/1662

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    2.0

    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
    CVE-2020-12140 | CVE-DB