Is CVE-2024-8947 actively exploited?

No active exploitation of CVE-2024-8947 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2024-8947 be exploited remotely?

Yes. CVE-2024-8947 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2024-8947?

CVE-2024-8947 has a CVSS score of 8.1 (HIGH).

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HIGH

CVE-2024-8947

CWE-416Published: September 17, 2024· Updated: Jun 17, 2026

8.1

CVSS v3.1

Official Description

A vulnerability was found in MicroPython 1.22.2. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file py/objarray.c. The manipulation leads to use after free. The attack can be launched remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. Upgrading to version 1.23.0 is able to address this issue. The identifier of the patch is 4bed614e707c0644c06e117f848fa12605c711cd. It is recommended to upgrade the affected component. In micropython objarray component, when a bytes object is resized and copied into itself, it may reference memory that has already been freed.

NVD Source

Technical Analysis

CVE-2024-8947 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.