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    CVE-2026-1998

    A flaw has been found in micropython up to 1.27.0. This vulnerability affects the function mp_import_all of the file py/runtime.c. This manipulation causes memory corruption. The attack needs to be launched locally. The exploit has been published and may be used. Patch name: 570744d06c5ba9dba59b4c3f432ca4f0abd396b6. It is suggested to install a patch to address this issue.

    Published:Feb 6, 2026
    Last Modified:Apr 18, 2026
    EPS:Feb 6, 2026
    EPSS Score:0.0001
    CVSS Score:3.3

    Affected Products

    Vendor
    Micropython
    Product
    Micropython

    Exploits

    https://github.com/micropython/micropython/issues/18639https://github.com/micropython/micropython/issues/18639#issue-3780651410https://github.com/micropython/micropython/pull/18671https://vuldb.com/?submit.743396

    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