CVE-2023-46256

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    CVE-2023-46256

    Published: 31 Oct 2023Last Modified: 28 Oct 2026

    Summary: PX4-Autopilot Heap Buffer Overflow Bug

    Details: PX4-Autopilot provides PX4 flight control solution for drones. In versions 1.14.0-rc1 and prior, PX4-Autopilot has a heap buffer overflow vulnerability in the parser function due to the absence of `parserbuf_index` value checking. A malfunction of the sensor device can cause a heap buffer overflow with leading unexpected drone behavior. Malicious applications can exploit the vulnerability even if device sensor malfunction does not occur. Up to the maximum value of an `unsigned int`, bytes sized data can be written to the heap memory area. As of time of publication, no fixed version is available.

    References: https://github.com/PX4/PX4-Autopilot/blob/main/src/drivers/distance_sensor/lightware_laser_serial/parser.cpp#L87, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46256.json, https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-5hvv-q2r5-rppw, https://nvd.nist.gov/vuln/detail/CVE-2023-46256

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.14.0-beta1
    1.14.0-beta2
    1.14.0-rc1

    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-2023-46256 | CVE-DB